Shudder came back, I changed out the spark plugs, shudder is completely gone. Hope this helps someone. Subway surface commenter was correct, change out the plugs. Like a new car again.
Thanks for this tip. My 2008 CX-9 I just purchased from my dad was having this exact same problem. It has 206K miles so I was thinking about taking it to a shop to see if I was going to need some transmission work done. I stumbled across this video and figured I’d give it a shot. I picked up this stuff at Autozone for about $13, and was surprised at how well it worked. You notice a difference your first trip after adding it in. Id say it fixed at least 90% of the problem. I am amazed how much of a difference it made.
god bless you for making this video my 08 Mazda cx9 is doing the same thing it happened 2 yrs ago and i paid 250 at dealership to flush and fill and it fixed the problem but now 12,000 miles and almost 2yrs to the day and its happening again,now im going to try this product and see what happens i pray to god that it works were about to have a baby and we have no money for a 6000 repair or even a used car .
This stuff really works! Put it in and have driven for five days now. I can't feel any shudder at all. Mine was shuddering in 4th gear, at slow acceleration, right at about 1500 rpm. I can't believe this was a simple fix. I'm hoping this will last. Thanks again for the video.
After a couple of weeks a very slight shudder, almost unnoticeable came back in 4th gear. Because I had not used the Mazda recommended transmission fluid I decided to flush the system using the transmission pump by disconnecting the coolant lines. The old fluid was not red even though it was only installed for a few months. By flushing it this time and using the JWS3309 fluid and one tube of Shudder Fix there is absolutely no sign of shudder in any gear now. If that ever changes, I'll post it here. I'm glad it worked for you too!
After changing my trans oil about 3 years ago, I had a bad shudder. I used this Shudder fix and went another 40,000 miles. I did another change recently and forgot to add the shudder fix again, I did add one more bottle and back to shifting normal.I suspect that Ford/Mazda added a friction modifier at the factory for these transmissions. My 2008 CX-9 now has 179,000 miles on original transmission and engine. Thanks for the video. Great product. Works wonders.
I have the same problem and will test this as soon as I can. My 2008 CX9 has a 160K miles on it and has been doing it since quite a while. Love everything about this car except this shutter.
I have the same problem and put in Lube Gard. The problem reduced but still there. Then I found that by switching to Manual mode the problem eliminated about 98% of the time. You still get very mild shuddering around 4th gear at 1000 RPM but not as bad as in Auto mode.
We had a shudder issue with our 2008 CX-9 which has just over 290,000 km on it. Turns out it's not the transmission but the U-joint at the drive shaft. The drive shaft needs to be replaced - it's costly but not crazy expensive. The CX-9 is off the road until the drive shaft comes in, which is currently on back-order.
I recently had this issue come up on my cx-9. Drive it for a little while and when you begin to park or place it in reverse it begins to stutter, even at one time the car shuts off/stops running
Directions are on the box it comes in. Advance Auto Parts sells for approx. $9. Amazon sells for a little cheaper. I have brought my 2010 CX-9 to 2 mechanics and they have no idea what it is. Can't wait to try this and see if it fixes the problem!
We had similar problem. The transmission shop could not find a problem and suggested this could be car performance/tuneup issue. The problem was fixed after replacing the spark plugs as some website suggested spark plugs or ignition coil could be an issue. Spark plugs replacement is a 2/3 hour work and got it done in a shop. Before going to the transmission shop, I had used this lube but it did not change any thing with my car situation.
I have a 2008 AWD CX-9 with 106,000 miles, had a really bad shudder at the 5th gear. Mazda mechanic said it was the driveshaft, pulled it out and ordered one (3 month back order). Taking it out disabled my AWD, and the shudder didn't go away so I went back, replaced the spark plugs and ignition coils, still no luck. He said it was the torque converter and a misfiring cylinder, costs $5000 to replace the transmission and torque converter, and $3100 to re-instal the original driveshaft and restore the AWD... basically lost any resale value my car had... :( Mechanic recommended I drive the car in manual mode as it doesn't vibrate if I don't let the car go into 5th gear
Thank you so much i put the lube guard in just like you said and it fixed the problem almost immediately,only put 20 miles on it and it is running perfect,thanks again.
I have 198K on mine and it does it around 40 MPH. Drives me nuts. I hope this works because I can’t afford to fix a transmission. I love the car however.
@@emilymacfarlane2889 I tried it and it worked (kinda, but not really) for week and the problem is back. It must work better for cars where the issue is new. I think my gearbox is a lot more damaged so it isn't fixing it. I even used two tubes. I'm going to have to pay for a brand new torque converter. Almost 2 grand. Yikes!
Oh ok I just bought mine this week I'm taking back to dealer tomrpw and there mechanic is going to take a look hopfully they can fix the issue since I've only bought the car 2xdays ago
@@emilymacfarlane2889 Yeah, good luck. It's such a costly issue to fix. But the method in this video doesn't actually fix the problem, it just masks it for a little while.
I had that issue. Drivetrain shudder. I ended up trading in the car as there was news of the CX9 known transfer case issues. So I assumed it was that. It was an 08 cx9 with 122,000 miles.
Yes, just the transfer case can be replaced unless the splines are damaged between the transmission and transfer case. Then both may need to be replaced.
Thank you, thank you! I have a 2011 cx-9. Ive had the shudder for a couple of months. Mechanic thought it was related to torque converter but wasn't qualified to fix. Came across your video. I bought the lube guard shudder fix, had transmission shop put it in, and no more shudder! I am amazed! Thank you for sharing this. Saved me a lot of worry and money I'm sure. Question - how long do you think this will last?
Hey man I know its been a while since you uploaded this but maybe you can help me. How much of that shudder fix fluid did you use? Did you use the whole pouch? Also, was your transmission dipstick located closer to the back by the intake and the hole for it the size of a coin? Sorry I know its alot of questions, but I'm having the same issue and want to give this a shot. I appreciate it man.
Joe T. Hi Joe, yes use the entire tube. My 2008 had a traditional dipstick. Later years have a screw hole like you describe. I since traded mine for a 2018 that I love but this solved the problem for a year for me.
I traded it 5 years ago for a new CX-9 after the transfer case to transmission spline failed due to lack of lubrication. The new car is much better than the 2009. Mazda gave me a deal because I argued it was a factory defect.
@@chrismiles2000 If you can make a case that it is defective, call Mazda USA. They gave me employee pricing which was about an additional $1,500 off of the best deal I could get from the dealer. Mine was 10 years old and had over 100k miles and they still did it.
Great video, thanks for posting. I am having the exact same problem with my 2010 CX-9 (about 101,000 miles). You are correct in that it is difficult to find useful and helpful information on this problem (other than replace the entire transmission). I am going to go out today and buy some "Shudder Fix" and try to report back in a week or so. Did you simply pour this into the transmission via the dipstick tube?
Yes pour it in. I also recommend changing the transmission fluid but only use the recommended JWS3309 (I think) Mazda fluid. Amazon has the shudder fix product.
I added original Mazda transmission fluid to my 2010 Mazda CX-9 and now something is rattling. Sounds like two pipes clanking together when I accelerate in reverse and accelerate in drive and also when the RPMS are decelerating. Very strange.
Is it necessary to change the Gear oil before using the shudder fix? I haven’t changed the gear oil for about a year and I have driven about 40000KM more. I have a Mazda CX-9 2009 model. It’s driven about 245000Km
It worked great on my 2007 CX 9 but i should have changed the fluid first. It’s seems to work best in hotter climate. It’s starting to get cold here and it starts to shudder until the transmission fluid warms up.
Our CX9 2008 at 128k km had shudder while changing lanes on highway. It happened on gear 3, 4 n more so at 5. There was hesitation to accelerate. I sent it to dealership to have a complete ATF flush n a change 1 week later. . I changed the air filter n also spray cleaned the Mass Air Flow sensor. 1 tube of this wonderful fluid was added as the last resort. After spending C$650 the shudder problems was still there at every stage. Finally I got the 6 spark plugs replaced with new plenum n throttle body gaskets for C$250. Tedious details for this change r here in this video: ua-cam.com/video/gPZrjQY0g5E/v-deo.html Now our CX9 is back to zoom zoom again...
I have an issue with a very hard downshift from 5th to 4th. Mine is a 2011 with 167k. It's been happening for probably 40k miles. Double ATF flush seemed to help for maybe a week, then it was back. Anyone else having this known issue - and have a fix for it? I don't think lubeguard is the answer for my issue.
Try Lucas Trans Addative. I used it for hard up shifts(2nd and 3rd gear)on my 2004 Pontiac Motana,worked wonders!! Must suck out/drain a guart of trans fluid then add a quart of Lucas!
Any reports back on how long the LubeGuard works? I have had this problem for the last 3k miles. Changed fluid at 130k and again at 166k to see if that helps (used Lucas too). The rest of the car is great. Anyone replace their transmission? What did that cost?
So I have a Mazda CX9 130k and I had this happen last month, it was tough describing it to my mechanic but it sounds exactly the same ( I Think). Around 40-50 mph slow light buck,. My mechanic was confused with no lights coming on, he must have called another mechanic who probably recommended this product, he just told me he added something but I have not driven it too much, tomorrow to work will be a test. I really hope it works, new transmission I can't afford now. How many more miles have you put on yours, I am wondering if It is fixed and If I should sell mine? Thanks for your post
I traded my 2009 for a 2018 about 6 months after this video when the transfer case failed. The 2018 seems much better engineered than the 2009 with far fewer problems.
@Chance2Go I had to drive 100 miles the other day to airport it was driving great but my AT light popped on the last 10 miles, I shut it off picked up family and drove back the light was off then popped on, did your AT light go on. I'm praying 🙏 to hit lottery 🙏
Hi @Parker.. my 2008 cx9 had same problem. Dealer did a software update for Torque control. But didnt help. Now its occurring at gears 4,5,6. Seems gotten worse. And they say to replace the Torque convertor plus the fluid for $2700. Does this makes sense. I’m not sure if something major happened with the Transmission!! And not sure of the odds for a 100% fix even after the TC replacement !
Not sure. Try adding the Shudder Fix fluid. I eventually traded mine for a new CX-9 because both the transmission and transfer case needed to be replaced for $7,000. Sudder Fix prevented the shudder problem though until the new problem.
We are having the same issue, I flushed the transmission fluid and it seemingly made it worse. My question, where it is only a 2oz package, is did you need more than one and how long till you could tell the difference? Thank you.
mxP443 did you use the Mazda recommended transmission fluid? If not, flush it again. Shudder Fix worked instantly. It took care of 95% of the problem. When I then flushed the old fluid for the correct specified fluid then added one tube again, it solved it 100% and has remained fixed for several months now.
The shudder did not return but I had another problem with the transfer case that caused me to trade in the car one year ago. I bought a new CX-9 and love the car.
@@AaronAviion The splined shaft that connects the transfer case to the transmission stripped due to inadequate lubrication. Both the transfer case and the transmission had to be replaced at $7,000. I complained to Mazda USA because it seemed like a design flaw and they offered a discount on a new Mazda so I traded it.
Hi I know this video was made awhile back but I'm having the same issues with my Mazda 6 2009, already flushed the transmission fluid twice and seems to have gotten better but still a slight studder between 35 55 mph when slightly hitting the gas. Just wanted to make sure if it's OK to put this stuff down the dip stick hole? Thanks in advance!
@@Chance2Go awesome thank you, I put some in this morning and seems to be subsiding. I will get the mazda fluid my next flush, thank you for responding.
@Chance Parker, below you say, "I eventually traded mine for a new CX-9 because both the transmission and transfer case needed to be replaced for $7,000. Sudder Fix prevented the shudder problem though until the new problem.". What was the new problem?
Walt van de Kust t shaft between the transfer case and transmission wore out due to lack of lubrication. It would have required both to be replaced. In research I found this to be a factory defect. Even though it was over 10 years old I contacted Mazda and they offered employee pricing on a new one. It got me about an additional $1,500 off of the best price I could get. The new CX-9 is far superior to the old one and I’ve had no issues in 39,000 miles so far.
Our 2012 CX9 sounds like it runs over the rumble stops on the side of the road (or middle) when it is accelerating around 40-45 mph. Is that a “shudder” by your definition. Mechanic is saying transmission issue
Hi, how is your CX-9 after using this Shudder Fix 9 month ago?. I'm having the same problem and I'm about to do the same thing you just did. But I would like to know if you after posting the video had some problems. Regards.
The shudder problem did not return. In January the transfer case went so I lost AWD. When I took it to the dealer they confirmed that but after removing the transfer case found the splines to the transmission were stripped. It would have required replacing both the transmission and transfer case at $7,000. I called Mazda corporate to see if they would help even though it was a 10-year-old car. They wouldn't help cover the repair costs but did offer employee pricing on a new car. That got me an additional 4% off the price of the car plus all the other incentives. So I bought a 2018 CX-9 and love it. The turbo 4 cylinder has more torque than the old 6 cylinder and it gets 25% better gas mileage! I am in the mid 20's MPG now. Hopefully this one has a better transmission and transfer case than the old design. Time will tell...
Hello chance parker I own a cx9 2008 grand touring, it shows the gear 6 on the transmission light on the dashboard is that normal ? Or is that a problem
@@andyessien6685 Yes if it is actually in 6th gear all the time. If the indicator says 6 but you can feel it shifting normally, than the indicator has a problam and I think that is less serious.
@@Chance2Go you're right that's just the problem I have with my gear so what do you think I'll need to do because I feel it shifts from the speedometer it goes from one to two but just the indicator problem, and also I have a slight problem with slow acceleration but that started today car starts well but no pressure when I hit the gas pedal you have any idea.
Mazda removed the dip stick around that year. I think there is a bolt that covers the hole to add fluid into the transmission. You may need a mechanic to help locate it.
hi at what mileage should transm. fluid b changed? also my gear stick gets stuck at p position so i temporarily unplugged the gear sensor to be able to shift to d. any clue why it gets stuck at p? thank you
The factory does not have a recommended change for the fluid. It seems smoother though since I did at 100,000 miles. Only use the Mazda recommended fluid and flush all of the old fluid out. Draining the pan only gets half of it out. I tried different fluid at first but didn't completely solve the problem until I went back to the Mazda fluid. I am not sure about the other problem that you are having.
Most likely the transfer case failed. If the splines between the transfer case and transmission are stripped the transmission will also need to be replaced. That happened to my 2008 CX-9, this past January. in this video and the dealer wanted $7,000 to replace both. Instead, I contacted Mazda Corporate and traded it in for a new 2018 CX-9. Because the car was so old Mazda wouldn't help fix it but they did give me a discount (employee pricing) on a new one. I am very happy with the new car.
Hi I have a Mazda CX 9 Model The walkway is 211,000 km The oil is black There is a problem with numbers 4 and 5 Ride but do not walk What is the problem and what is the solution?
The spline between the transfer case and the transmission failed. The splines were stripped due to improper lubrication. From what I read this was a design problem. To fix it would have required replacing both the transfer case and the transmission at $7,000! Mazda Corporate is or was helping fix these if the car is 2009 or later. Mine was a 2008. Instead they offered me employee pricing on a new car. I liked the 2018 CX-9 so I took it and like everything about the car. It's much more refined than the 2008 and I did like that car until I had the transmission problems.
Chance Parker does it happen only it AWD versions then? I got FWD 135k miles on it and no fluid has been changed since it was produced. Curious if I had to change it if I dont find anything wrong with the car yet.
I have several times. The Automatic Transaxle light and Check Engine like will pop on at the same time and my vehicle gets stuck in 3rd gear. Hooked mine up to a scanner and said it was the Shift Solanoid Circuit High.
Shudder came back, I changed out the spark plugs, shudder is completely gone. Hope this helps someone. Subway surface commenter was correct, change out the plugs. Like a new car again.
Thanks for this tip. My 2008 CX-9 I just purchased from my dad was having this exact same problem. It has 206K miles so I was thinking about taking it to a shop to see if I was going to need some transmission work done. I stumbled across this video and figured I’d give it a shot. I picked up this stuff at Autozone for about $13, and was surprised at how well it worked. You notice a difference your first trip after adding it in. Id say it fixed at least 90% of the problem. I am amazed how much of a difference it made.
Hi do you have an idea on how to change the transmission oil? 2008 Mazda cx9
How did you add it My 2011 just started having this problem and I just stumbled across this video
@@saliston hi did you ever figure it out i have the same issue
100%
Got the 2 oz tube on Amazon prime
This stoped the shudders after driving about 5miles
Lot cheaper than the $125 diagnostic the dealer wanted
god bless you for making this video my 08 Mazda cx9 is doing the same thing it happened 2 yrs ago and i paid 250 at dealership to flush and fill and it fixed the problem but now 12,000 miles and almost 2yrs to the day and its happening again,now im going to try this product and see what happens i pray to god that it works were about to have a baby and we have no money for a 6000 repair or even a used car .
Did it work? I have the same car with the same problem 😭
This stuff really works! Put it in and have driven for five days now. I can't feel any shudder at all. Mine was shuddering in 4th gear, at slow acceleration, right at about 1500 rpm. I can't believe this was a simple fix. I'm hoping this will last. Thanks again for the video.
I also did not change out the trans fluid as I just had this done about 9,000 miles ago.
After a couple of weeks a very slight shudder, almost unnoticeable came back in 4th gear. Because I had not used the Mazda recommended transmission fluid I decided to flush the system using the transmission pump by disconnecting the coolant lines. The old fluid was not red even though it was only installed for a few months. By flushing it this time and using the JWS3309 fluid and one tube of Shudder Fix there is absolutely no sign of shudder in any gear now. If that ever changes, I'll post it here. I'm glad it worked for you too!
Benjamin, how is it now after 9 months?
how is the car now?
@@Chance2Go Hi Chance, I know this is 6 years late, but would you mind do a video of how to flush transmission fluid like you mentioned here?
After changing my trans oil about 3 years ago, I had a bad shudder. I used this Shudder fix and went another 40,000 miles. I did another change recently and forgot to add the shudder fix again, I did add one more bottle and back to shifting normal.I suspect that Ford/Mazda added a friction modifier at the factory for these transmissions. My 2008 CX-9 now has 179,000 miles on original transmission and engine. Thanks for the video. Great product. Works wonders.
Change spark plugs.
Thank you so much! I had shutter and thought my 2008 was on its last leg...I used this and....magic!
I have the same problem and will test this as soon as I can. My 2008 CX9 has a 160K miles on it and has been doing it since quite a while. Love everything about this car except this shutter.
I have the same problem and put in Lube Gard. The problem reduced but still there. Then I found that by switching to Manual mode the problem eliminated about 98% of the time. You still get very mild shuddering around 4th gear at 1000 RPM but not as bad as in Auto mode.
عندي مثل مشكلتك،، هل يوجد حل نهائي لهذه المشكلة؟؟
I have same problem,, is there any siluotion???
Thanks for the hint.
Aún tienes el problema o lo solucionaste?
Yo tengo el mismo problema use el producto lo redujo uno poco el problema pero no se quitó
We had a shudder issue with our 2008 CX-9 which has just over 290,000 km on it. Turns out it's not the transmission but the U-joint at the drive shaft. The drive shaft needs to be replaced - it's costly but not crazy expensive. The CX-9 is off the road until the drive shaft comes in, which is currently on back-order.
I recently had this issue come up on my cx-9. Drive it for a little while and when you begin to park or place it in reverse it begins to stutter, even at one time the car shuts off/stops running
Directions are on the box it comes in. Advance Auto Parts sells for approx. $9. Amazon sells for a little cheaper. I have brought my 2010 CX-9 to 2 mechanics and they have no idea what it is. Can't wait to try this and see if it fixes the problem!
Kathryn Davis Did it work?
We had similar problem. The transmission shop could not find a problem and suggested this could be car performance/tuneup issue. The problem was fixed after replacing the spark plugs as some website suggested spark plugs or ignition coil could be an issue. Spark plugs replacement is a 2/3 hour work and got it done in a shop. Before going to the transmission shop, I had used this lube but it did not change any thing with my car situation.
I also replaced the plugs and coils in an attempt to fix the problem. I thought there was a slight improvement but it did not solve the problem.
Thank you! Put it in my 2010 cx9 and it worked right away.
Reicce Bass any process on how you did it?
@@r0nnick - easy to add through the dipstick on a 2010.
@Dave Howard= into the transmission, so trans dipstick. I used the entire tube.
I have a 2008 AWD CX-9 with 106,000 miles, had a really bad shudder at the 5th gear. Mazda mechanic said it was the driveshaft, pulled it out and ordered one (3 month back order). Taking it out disabled my AWD, and the shudder didn't go away so I went back, replaced the spark plugs and ignition coils, still no luck. He said it was the torque converter and a misfiring cylinder, costs $5000 to replace the transmission and torque converter, and $3100 to re-instal the original driveshaft and restore the AWD... basically lost any resale value my car had... :( Mechanic recommended I drive the car in manual mode as it doesn't vibrate if I don't let the car go into 5th gear
Did you have the time to try this product? The New torque converter fixed the vibration?
Thank you so much i put the lube guard in just like you said and it fixed the problem almost immediately,only put 20 miles on it and it is running perfect,thanks again.
This fix worked for me.
200k on clock. 07 cx9
I have 198K on mine and it does it around 40 MPH. Drives me nuts. I hope this works because I can’t afford to fix a transmission. I love the car however.
It only works if your problem is fluid related. If it’s mechanical related, it won’t work. This worked like magic on my truck.
I have the exact same car, 2007 model with the same mileage and the exact same problem. Am going to try that product and hope it works. Thanks.
Let me no how u go I have same problem 2007 model too
@@emilymacfarlane2889 I tried it and it worked (kinda, but not really) for week and the problem is back. It must work better for cars where the issue is new. I think my gearbox is a lot more damaged so it isn't fixing it. I even used two tubes. I'm going to have to pay for a brand new torque converter. Almost 2 grand. Yikes!
Oh ok I just bought mine this week I'm taking back to dealer tomrpw and there mechanic is going to take a look hopfully they can fix the issue since I've only bought the car 2xdays ago
@@emilymacfarlane2889 Yeah, good luck. It's such a costly issue to fix. But the method in this video doesn't actually fix the problem, it just masks it for a little while.
I'm hoping they do a transmission service it's not a bad shudder so hoping that will solve it
I had that issue. Drivetrain shudder. I ended up trading in the car as there was news of the CX9 known transfer case issues. So I assumed it was that. It was an 08 cx9 with 122,000 miles.
I have the same problem right now! Thank you for the tips!
THANK YOU!! I am about to try and find some for my 07 CX9!
Yes, just the transfer case can be replaced unless the splines are damaged between the transmission and transfer case. Then both may need to be replaced.
Thank you, thank you! I have a 2011 cx-9. Ive had the shudder for a couple of months. Mechanic thought it was related to torque converter but wasn't qualified to fix. Came across your video. I bought the lube guard shudder fix, had transmission shop put it in, and no more shudder! I am amazed! Thank you for sharing this. Saved me a lot of worry and money I'm sure. Question - how long do you think this will last?
Rob Mann mine lasted until I traded the car due to other problems a year later
Hi shld i try on my mazda cx9 2009 as its has problems in reverse n 3 n 5th gear? Plz suggest
Hello been trying located the speed sensor transmition on a cx9 2011 can you help me out
I had this problem for a year. Took to local mechanic and he replaced the air filter (it was really bad). No more shudder...
Hey man I know its been a while since you uploaded this but maybe you can help me. How much of that shudder fix fluid did you use? Did you use the whole pouch? Also, was your transmission dipstick located closer to the back by the intake and the hole for it the size of a coin? Sorry I know its alot of questions, but I'm having the same issue and want to give this a shot. I appreciate it man.
Joe T. Hi Joe, yes use the entire tube. My 2008 had a traditional dipstick. Later years have a screw hole like you describe. I since traded mine for a 2018 that I love but this solved the problem for a year for me.
@@Chance2Go I appreciate man, thank you so much for the quick reply! I'm gonna give this a shot and cross my fingers!
Just did my 2009 cx9 113000 ml update in a few hrs let you guy know the results
It's been awhile...what was the update?
Just wondering if you replied to comments after 5 years? Do you still have the car what's the current condition how long did the fix last?
I traded it 5 years ago for a new CX-9 after the transfer case to transmission spline failed due to lack of lubrication. The new car is much better than the 2009. Mazda gave me a deal because I argued it was a factory defect.
@@Chance2Go Right on thanks for the update, chance. I'm thinking about trading it in in its current status.
@@chrismiles2000 If you can make a case that it is defective, call Mazda USA. They gave me employee pricing which was about an additional $1,500 off of the best deal I could get from the dealer. Mine was 10 years old and had over 100k miles and they still did it.
Can you please tell me where to find the transmission dipstick? I’ve been trying to find it for the last hour. 2011 CX-9
How long until you had to do it again, or has it been fixed from just the one time?
I have this problem with a 2013 toyota rav 4 doing a shudder/vibration. Dealership says $3500 repair to replace trans. Thank you!
Great video, thanks for posting. I am having the exact same problem with my 2010 CX-9 (about 101,000 miles). You are correct in that it is difficult to find useful and helpful information on this problem (other than replace the entire transmission). I am going to go out today and buy some "Shudder Fix" and try to report back in a week or so. Did you simply pour this into the transmission via the dipstick tube?
Yes pour it in. I also recommend changing the transmission fluid but only use the recommended JWS3309 (I think) Mazda fluid. Amazon has the shudder fix product.
@@Chance2Go where do we get in from.malaysia
I added original Mazda transmission fluid to my 2010 Mazda CX-9 and now something is rattling. Sounds like two pipes clanking together when I accelerate in reverse and accelerate in drive and also when the RPMS are decelerating. Very strange.
Is it necessary to change the Gear oil before using the shudder fix? I haven’t changed the gear oil for about a year and I have driven about 40000KM more. I have a Mazda CX-9 2009 model. It’s driven about 245000Km
Are you changes?
It worked great on my 2007 CX 9 but i should have changed the fluid first. It’s seems to work best in hotter climate. It’s starting to get cold here and it starts to shudder until the transmission fluid warms up.
Our CX9 2008 at 128k km had shudder while changing lanes on highway. It happened on gear 3, 4 n more so at 5. There was hesitation to accelerate.
I sent it to dealership to have a complete ATF flush n a change 1 week later. . I changed the air filter n also spray cleaned the Mass Air Flow sensor.
1 tube of this wonderful fluid was added as the last resort.
After spending C$650 the shudder problems was still there at every stage.
Finally I got the 6 spark plugs replaced with new plenum n throttle body gaskets for C$250.
Tedious details for this change r here in this video:
ua-cam.com/video/gPZrjQY0g5E/v-deo.html
Now our CX9 is back to zoom zoom again...
I did several of the things you tried and was quite relieved when a $3 tube solved the problem.
How do you add this lube to the transmission this just started happening to my 2011 at 146,000 mi
Did you fins out how? I have the same issue
Can't find the stupid dipstick
I have an issue with a very hard downshift from 5th to 4th. Mine is a 2011 with 167k. It's been happening for probably 40k miles. Double ATF flush seemed to help for maybe a week, then it was back. Anyone else having this known issue - and have a fix for it? I don't think lubeguard is the answer for my issue.
Try Lucas Trans Addative. I used it for hard up shifts(2nd and 3rd gear)on my 2004 Pontiac Motana,worked wonders!! Must suck out/drain a guart of trans fluid then add a quart of Lucas!
How much of a pain in the neck was it to pour in the liquid?
Any reports back on how long the LubeGuard works? I have had this problem for the last 3k miles. Changed fluid at 130k and again at 166k to see if that helps (used Lucas too). The rest of the car is great. Anyone replace their transmission? What did that cost?
So did you add the Lube guard? ...or just the Lucas?
Did you ever have to add another tube down the road after "x" miles? Or did it last/preform well for a decent amount of time?
I think I did add one later. It's been nearly 5 years since I had that car so I don't remember exactly.
So I have a Mazda CX9 130k and I had this happen last month, it was tough describing it to my mechanic but it sounds exactly the same ( I Think). Around 40-50 mph slow light buck,. My mechanic was confused with no lights coming on, he must have called another mechanic who probably recommended this product, he just told me he added something but I have not driven it too much, tomorrow to work will be a test. I really hope it works, new transmission I can't afford now. How many more miles have you put on yours, I am wondering if It is fixed and If I should sell mine? Thanks for your post
I traded my 2009 for a 2018 about 6 months after this video when the transfer case failed. The 2018 seems much better engineered than the 2009 with far fewer problems.
@Chance2Go I had to drive 100 miles the other day to airport it was driving great but my AT light popped on the last 10 miles, I shut it off picked up family and drove back the light was off then popped on, did your AT light go on. I'm praying 🙏 to hit lottery 🙏
Hi @Parker.. my 2008 cx9 had same problem. Dealer did a software update for Torque control. But didnt help. Now its occurring at gears 4,5,6. Seems gotten worse. And they say to replace the Torque convertor plus the fluid for $2700. Does this makes sense. I’m not sure if something major happened with the Transmission!! And not sure of the odds for a 100% fix even after the TC replacement !
Not sure. Try adding the Shudder Fix fluid. I eventually traded mine for a new CX-9 because both the transmission and transfer case needed to be replaced for $7,000. Sudder Fix prevented the shudder problem though until the new problem.
We are having the same issue, I flushed the transmission fluid and it seemingly made it worse. My question, where it is only a 2oz package, is did you need more than one and how long till you could tell the difference? Thank you.
mxP443 did you use the Mazda recommended transmission fluid? If not, flush it again. Shudder Fix worked instantly. It took care of 95% of the problem. When I then flushed the old fluid for the correct specified fluid then added one tube again, it solved it 100% and has remained fixed for several months now.
Hi Parker, Hope you are going great.
Just wanted to know is it still running smoothly ? or you had to upgrade
The shudder did not return but I had another problem with the transfer case that caused me to trade in the car one year ago. I bought a new CX-9 and love the car.
@@Chance2Go please how can I change the transmission oil
@@Chance2Go what was the other problem?
@@AaronAviion The splined shaft that connects the transfer case to the transmission stripped due to inadequate lubrication. Both the transfer case and the transmission had to be replaced at $7,000. I complained to Mazda USA because it seemed like a design flaw and they offered a discount on a new Mazda so I traded it.
Can i get transmission complete kit in Qatar?
So where do i pour that in
Hi I know this video was made awhile back but I'm having the same issues with my Mazda 6 2009, already flushed the transmission fluid twice and seems to have gotten better but still a slight studder between 35 55 mph when slightly hitting the gas. Just wanted to make sure if it's OK to put this stuff down the dip stick hole? Thanks in advance!
Yes, and you should have used Mazda transmission fluid. I tried another brand and learned I should have used Mazda fluid.
@@Chance2Go awesome thank you, I put some in this morning and seems to be subsiding. I will get the mazda fluid my next flush, thank you for responding.
im gonna try this. i have 245k on mine and this just started to happen.
@Chance Parker, below you say, "I eventually traded mine for a new CX-9 because both the transmission and transfer case needed to be replaced for $7,000. Sudder Fix prevented the shudder problem though until the new problem.".
What was the new problem?
Walt van de Kust t shaft between the transfer case and transmission wore out due to lack of lubrication. It would have required both to be replaced. In research I found this to be a factory defect. Even though it was over 10 years old I contacted Mazda and they offered employee pricing on a new one. It got me about an additional $1,500 off of the best price I could get. The new CX-9 is far superior to the old one and I’ve had no issues in 39,000 miles so far.
Thanks! Been having this problem with my 2009. Will try.
Chris b have you had any results?
Our 2012 CX9 sounds like it runs over the rumble stops on the side of the road (or middle) when it is accelerating around 40-45 mph. Is that a “shudder” by your definition. Mechanic is saying transmission issue
Yes, that's it.
@@Chance2Go I’m having difficulty getting the torx head cap out. Any suggestions?
@@EJR898989 No, I am not a mechanic just a previous 2008 owner and now own a 2018 CX-9 which is a much better design.
Hi, how is your CX-9 after using this Shudder Fix 9 month ago?. I'm having the same problem and I'm about to do the same thing you just did. But I would like to know if you after posting the video had some problems.
Regards.
The shudder problem did not return. In January the transfer case went so I lost AWD. When I took it to the dealer they confirmed that but after removing the transfer case found the splines to the transmission were stripped. It would have required replacing both the transmission and transfer case at $7,000. I called Mazda corporate to see if they would help even though it was a 10-year-old car. They wouldn't help cover the repair costs but did offer employee pricing on a new car. That got me an additional 4% off the price of the car plus all the other incentives. So I bought a 2018 CX-9 and love it. The turbo 4 cylinder has more torque than the old 6 cylinder and it gets 25% better gas mileage! I am in the mid 20's MPG now. Hopefully this one has a better transmission and transfer case than the old design. Time will tell...
Great thanks for the info
Hello chance parker I own a cx9 2008 grand touring, it shows the gear 6 on the transmission light on the dashboard is that normal ? Or is that a problem
I traded my 2008 5 years ago. As I recall, the gear number displays as the transmission moves through the gears.
@@Chance2Go thanks but you think as money just stays at 6 could that be a serious problem
@@andyessien6685 Yes if it is actually in 6th gear all the time. If the indicator says 6 but you can feel it shifting normally, than the indicator has a problam and I think that is less serious.
@@Chance2Go you're right that's just the problem I have with my gear so what do you think I'll need to do because I feel it shifts from the speedometer it goes from one to two but just the indicator problem, and also I have a slight problem with slow acceleration but that started today car starts well but no pressure when I hit the gas pedal you have any idea.
@@andyessien6685 I am not a professional mechanic so I don't know how to solve that problem. I traded the CX-9 for a new one in 2018.
I cannot find where to put the transmission fluid it is a 2012 CX9
Mazda removed the dip stick around that year. I think there is a bolt that covers the hole to add fluid into the transmission. You may need a mechanic to help locate it.
hi
at what mileage should transm. fluid b changed?
also my gear stick gets stuck at p position so i temporarily unplugged the gear sensor to be able to shift to d. any clue why it gets stuck at p?
thank you
The factory does not have a recommended change for the fluid. It seems smoother though since I did at 100,000 miles. Only use the Mazda recommended fluid and flush all of the old fluid out. Draining the pan only gets half of it out. I tried different fluid at first but didn't completely solve the problem until I went back to the Mazda fluid. I am not sure about the other problem that you are having.
Chance Parker thank you chance. there is only 85k km on my car so u think it is still early to change transm. oil?
thx again for your responses.
rgds
I used it but it’s still making shutter should I use another one
You can try but if one didn't fix it, it is more likely a bigger issue
Will this work in a 2010 Mazda CX-9
Hola te funcionó?
How do you add it to the transmission?
curtis reese my 2008 had a dipstick. Later models did not. I think there is a bolt you remove then use a funnel.
My uncle has a 2008 but he said his doesn’t have a dipstick. But I can find where the bolt is. But you just add it to the transmission fluid?
curtis reese , yes, add it to the transmission fluid
Ok thank you so much
Hello All, I have Mazda cx9 2008 and its 4WD system is Not switched on while offroad, could it be transmission problem?
Most likely the transfer case failed. If the splines between the transfer case and transmission are stripped the transmission will also need to be replaced. That happened to my 2008 CX-9, this past January. in this video and the dealer wanted $7,000 to replace both. Instead, I contacted Mazda Corporate and traded it in for a new 2018 CX-9. Because the car was so old Mazda wouldn't help fix it but they did give me a discount (employee pricing) on a new one. I am very happy with the new car.
Chance Parker if the transfer case failed will it be able to be replaced? Or need to replace transmission?
Hi
I have a Mazda CX 9
Model
The walkway is 211,000 km
The oil is black
There is a problem with numbers 4 and 5
Ride but do not walk
What is the problem and what is the solution?
mrem mrem , I don’t know. You can try the Shudder Fix but I don’t think that will fix it.
Does this last for a long time? Or does the problem come back?
It lasted about 8 months but I eventually had other problems that caused me to trade in the car
Chance Parker hey, what were the other problems that forced you trade it in?
The spline between the transfer case and the transmission failed. The splines were stripped due to improper lubrication. From what I read this was a design problem. To fix it would have required replacing both the transfer case and the transmission at $7,000! Mazda Corporate is or was helping fix these if the car is 2009 or later. Mine was a 2008. Instead they offered me employee pricing on a new car. I liked the 2018 CX-9 so I took it and like everything about the car. It's much more refined than the 2008 and I did like that car until I had the transmission problems.
Chance Parker does it happen only it AWD versions then? I got FWD 135k miles on it and no fluid has been changed since it was produced. Curious if I had to change it if I dont find anything wrong with the car yet.
Only the AWD has a transfer case. I would recommend flushing the fluid with the Mazda fluid. It's a lot less expensive than a new transmission.
Welp, not buying a Mazda cx9.
Has anyone had the AT dash light come on in conjunction with the shuddering? ATF fluid isn't that old, but the car has 125K miles on the odometer
I have several times. The Automatic Transaxle light and Check Engine like will pop on at the same time and my vehicle gets stuck in 3rd gear. Hooked mine up to a scanner and said it was the Shift Solanoid Circuit High.
Here is a link to the video on how it works and how to add it: ua-cam.com/video/l3RmaLuhMjA/v-deo.html
Hey I never change my transmission fluid do I half to change it before using this because I am getting the same problem
No, I did it at first without changing it so try it. If it does not completely eliminate the problem then change the fluid.
is this the 2 or 4WD?
AWD
@@Chance2Go ok thank you
Son of a 3###%%/## too late for me had my car in shop shutter gone now transmission screwed up....
I had to replace the valve body.
Did you fix it with the valve body replacement ?
This is not working bad product
It doesn't claim to fix a bad transmission. It appears to work for a lot people. But it probably won't work in every situation.
The transfer case are trash
Call this BS