We are going to send ours to place that repairs these in Joplin, Missouri. Your video confirmed the ongoing issue is probably this. We've replaced everything else, and then after the expense, find out that this may have been the issue all along.
Man I appreciate you making this video. This fixed my shifting issue I had and I was damn near getting ready to give up on it to. Thanks again for sharing the information 👍
I'm replaced just about everything I can think of. Been working on my truck for 6 months. The transmission guy said to bring it down but it will be expensive - then I ran across your video. Thank you. 1) Going to replace all the old fuses in the interior fuse box (UA-camrs said it helped) and going to investigate the PSOM in the dash.) I hear about resetting the PSOM in a youtube video as well. **Interesting, my dome light was not working and I tightened up the screw months ago - just about the time the trans starting shifting hard in , 2 and banging into reverse. I thought nothing of it - that would not possibly be the issue! (Maybe?). The more I investigate the more I find funny things about it. Like the rear brake light fuse is the same one used for the MLPS sensor on the transmission. So stuff light that. Get good Buss(tm) fuses and replace them all.
Check the 3rd brake light bulb. It is actually in series with some power wire for the trans. Thats what an old ford trans technician told me. He got his butt kicked by one years ago.
@@95GTSpeedDemon that’s something else that will cause the issue, but my brake light was working just fine. I replaced the sensor in the rearend and the sensor on the transmission and still no difference. I noticed that some of my dash gauges were not functioning like they should so I just purchased a complete rebuild dash cluster with warranty and it solved everything. Going on three years now without that issue reoccurring thank you baby Jesus! lol
Great work! I have been following your videos for about a year now since I got my 1997 F250 460 and they have been super helpful. I was having a very similar problem with my truck for about six months and was getting nowhere while trying to fix it. Finally found a faulty connection on the PSOM and got it repaired. Keep up the great work!
Neat vid. Came across when researching why my '94 f150 speedometer/odometer wasn't working. Ended up being the #5 "odometer memory" fuse. Glad it wasn't the PSOM like here. Although I probably would've attempted this had it been the problem.
Wow, great diagnosis and work. I'm thinking if that were taken to a shop they would have you in for a few thousand dollars for an unnecessary transmission rebuild and that still wouldn't have fixed the issue.
They more than likely would have fixed the PSOM and charged for a transmission rebuild that was never done. I hate to think that people can be so dishonest, but it's the reality of our screwed up world.
WOW, Thank you for the lesson, very, very Informative, i am having Overdrive Problems, where it is engaging either way to early, some times at 30 and other times it is at 40, also i know that my ECM was Bad, i repaired it sometime back, though i still have the Trans Shift Problem, the Transmission don't have 2000 Miles on it and i do believe this PSOM is bad, so i will certainly pull that Instrument Cluster and make any necessary repairs. I can't say thank you enough! Thanks, Thanks, and have a great day for 1 hr at least, lol.
You can get a used speedo at the wrecking yard and plug it in and the mileage will be the same as the old one. I did this when I had a problem. I called a shop and they told me that the mileage is stored in the computer on board. I do like your videos
Wow what a Great video Thanx I have a 1991 f 250 4x4 my problem the OO not engaging Car shifts ok 3 gear short shift 1 to second longer You really know your ford
Thanks for the video. I had a bad joint on the capacitor you replaced (it looked corroded and green) so I removed it and re-soldered the cap back in place. This fixed a frustrating hard shifting problem that I have had for a couple of years. In a previous attempt to fix this problem I also replaced the clock spring, and three capacitors on the PCM that looked suspect. My problem acted up when it was hot outside, if I let the truck automatically warm up until the choke went off, after using the cruise control, and sometimes randomly. Seems to run puuuuurfect now.
Chris Jackson I have a Question would yours only shift hard or would it feel like it gets out of gear also? Because I am having similar issues, it feels like it gets out of gear and if I press the gas it just revs up and then it shifts hard and if I let go the gas it catches gear again but it only happens when its hot and I live in Texas so its always hot, Been having this issue on my 94 bronco for years already. Already overhauled the transmission, replaced vss, mlps, tps, fuel pressure regulator, pcm and still having same issue. I love my bronco but getting frustrated that I have replace a lot of part and still having same issue. Any help would be greatly appreciated. Thanks in advance
Update, it was a lot better and less frequent, but has recently gotten bad again. It mostly hard shifts, but prior to the hard shift it feels like it is reving higher and slipping. It is consistent with the speedo needle dropping and the electronic display going blank. It happens more often when the dashboard has been hot from sunlight, and especially at higher altitude for some reason. Time to take it apart again and inspect...
@@MrHollywood2021 I pulled my psom board out and it looks good. Going to check the connector at the transmission. Seems to be heat related, will neutral out of overdrive and hard shifts intermittently. Sometimes I could go hundreds of miles and it was fine. Seemed to get worse/ more frequent, over the summer. Need to try it now that it is getting cooler.
Man oh man this is a great video even though I don't know a single thing about all those electronics. I mean nothing. I am having the exact same problem with a 94 F250 IDI diesel truck. My speedo after about 50 MPH goes completely nuts Also shortly after my truck would go into that same limp mode as yours. I checked the V-speed sensor but only for continuity. I don't remember what the reading was but assumed it worked. Now I don't know where to go next. That module behind the speedo is a complete mystery to me however the 1994 idi turbo-diesel does not have the same in 1994 does not have the computer hookups the 1995 truck would have. It is my understanding that the computer box in the truck only governs the transmission. I'm wondering if that could be where my problem is. I may have to ...but am afraid to send it to a trany shop and get a humongous bill only to find out it's a problem like yours. Does ford still even sell that circuit board? Seems ford doesn't want to even talk to you if your car is over 10 years old. God I admire people who know about all those diodes and compasitors. I watched your video and was amazed. I have been told it could well be an electrical problem though. I'm in Jacksonville Florida and wish I knew someone I could trust not to rip me off. You are a genius to figure all that out.
I have a similar issue with my 1996 Ford F350 XLT I will save your video and use it as a guide. I bought the truck a while back. my speedometer is bouncing, and I have an Overdrive off light that will bounce, mine has failed to shift. Was intermittent.
Hello, very good video, thanks for sharing. One question, I cannot find the resistance to be able to change it, which one is used in the video, the replacement one, mine has (10062 f00f -aa t dk) which one can I replace or change? thank you
You are very knowledgable. I have an e 150 van 1996. I had to floor it to get from 1st to 2nd, then rev it and let up to get into 3rd and 4th etc., overdrive light flashing, and speedo goes up wildly til it sticks a 35. I put in the new vss, and the shifting from 1-2 is much better. But the speedo still doesn't work right, and overdrive light blinks. Am thinking it's somewhere in the psom. Any ideas? thanks
Do you think it's possible to switch the psom mode from english to overseas (imperial to metric)? Mine is a Canadian truck with a metric speedometer but the psom mode is somehow Imperial. The speedometer reads way too high, and for some wierd reason the odometer reads way too low. They are clearly in the ratio range of imperial vs metric.....but going in opposite directions. Very wierd. I've heard some people mention about their speedometer switching from english to metric....for no good reason, and not knowing how to restore the original setting, if it's possible at all. Just wanting to investigate before I go through the difficult process of trying to track down a new metric speedometer odometer module.
Do you have a diagram? The top left pin fried and melted the back. I just had transmission work done/new torque converter. back and forth shifting. The shop said it was not there fault.
Did anyone ever find out what size varistor it is? I measured it and got 14mm diameter of the disk but having trouble with the voltage, max voltage, etc, etc. Can someone give the correct model number of the replacement varistor needed? Mine is burnt and unreadable. Thanks
Could you please tell me the diode you used for this fix, mine was completely destroyed. And i cant determine the sizing. Thank you for taking the time to help the rest of us.
This video is kinda old but wondering if you might have an idea on a tach that blows the fuse. I changed out the cluster awhile ago and never had any problems. The new cluster had an airbag light but I don't have an airbag. The number 17 fuse popped and I switched it out but it immediately blew again and the air bag light is on. The only other thing I did recently was replace the turn signal multi switch because the left rear blinker wouldn't work and after replacing it the signal worked fine. Any idea where to start looking and testing. Thanks
Could you give a list of what all components you used and what the ratings are? I've been having issues with my E4OD for years giving me a VSS code just like yours. I actually have it apart on the table right now. I was replacing a leaky capacitor while internet surfing and happened upon this video. Now I want to replace more than I bought lol.
@@BCW1154 ua-cam.com/video/vPbsvX2EIWc/v-deo.html This guy made another video on it. Might have what your looking for, even though it’s been 6 months ha. His channel is bassguitarist1985
Not sure why you'd use a different capacitor value. 100uF is a lot different than 220uF. 35V is only an indication of the max voltage that capacitor is rated for.
There is generous level skills involved here... Just saying, The electrical knowledge is hard to come by 👏
We are going to send ours to place that repairs these in Joplin, Missouri. Your video confirmed the ongoing issue is probably this. We've replaced everything else, and then after the expense, find out that this may have been the issue all along.
Man I appreciate you making this video. This fixed my shifting issue I had and I was damn near getting ready to give up on it to. Thanks again for sharing the information 👍
I'm replaced just about everything I can think of. Been working on my truck for 6 months. The transmission guy said to bring it down but it will be expensive - then I ran across your video. Thank you. 1) Going to replace all the old fuses in the interior fuse box (UA-camrs said it helped) and going to investigate the PSOM in the dash.) I hear about resetting the PSOM in a youtube video as well. **Interesting, my dome light was not working and I tightened up the screw months ago - just about the time the trans starting shifting hard in , 2 and banging into reverse. I thought nothing of it - that would not possibly be the issue! (Maybe?). The more I investigate the more I find funny things about it. Like the rear brake light fuse is the same one used for the MLPS sensor on the transmission. So stuff light that. Get good Buss(tm) fuses and replace them all.
Check the 3rd brake light bulb. It is actually in series with some power wire for the trans. Thats what an old ford trans technician told me. He got his butt kicked by one years ago.
@@95GTSpeedDemon that’s something else that will cause the issue, but my brake light was working just fine. I replaced the sensor in the rearend and the sensor on the transmission and still no difference. I noticed that some of my dash gauges were not functioning like they should so I just purchased a complete rebuild dash cluster with warranty and it solved everything. Going on three years now without that issue reoccurring thank you baby Jesus! lol
@@theautodidacticman_Where did you purchase the rebuilt cluster?
@@chikenburger eBay
Great work! I have been following your videos for about a year now since I got my 1997 F250 460 and they have been super helpful.
I was having a very similar problem with my truck for about six months and was getting nowhere while trying to fix it. Finally found a faulty connection on the PSOM and got it repaired.
Keep up the great work!
Thank u so much trying to keep my old 1 ton dump truck going.
This fixed my cruise! Thanks for posting it helped a lot!
Wow thanks! I had a puff of smoke come out of my dash in my 96 Bronco. I have been chasing VSS issues and I bet this will solve it. Thanks again.
Neat vid. Came across when researching why my '94 f150 speedometer/odometer wasn't working. Ended up being the #5 "odometer memory" fuse. Glad it wasn't the PSOM like here. Although I probably would've attempted this had it been the problem.
95thousandroses,
Where is that fuse located? i am some Overdrive problems.
Thank you for that tip.
I love you man finally somebody real
Wow, great diagnosis and work. I'm thinking if that were taken to a shop they would have you in for a few thousand dollars for an unnecessary transmission rebuild and that still wouldn't have fixed the issue.
They more than likely would have fixed the PSOM and charged for a transmission rebuild that was never done. I hate to think that people can be so dishonest, but it's the reality of our screwed up world.
WOW, Thank you for the lesson, very, very Informative, i am having Overdrive Problems, where it is engaging either way to early, some times at 30 and other times it is at 40, also i know that my ECM was Bad, i repaired it sometime back, though i still have the Trans Shift Problem, the Transmission don't have 2000 Miles on it and i do believe this PSOM is bad, so i will certainly pull that Instrument Cluster and make any necessary repairs. I can't say thank you enough!
Thanks, Thanks, and have a great day for 1 hr at least, lol.
You can get a used speedo at the wrecking yard and plug it in and the mileage will be the same as the old one. I did this when I had a problem. I called a shop and they told me that the mileage is stored in the computer on board. I do like your videos
I did this and the mileage was not the same for some reason
@@mudoutsandburnpits8466 Mileage is actually stored in the psom. If you change speedo, the odometer mileage is that on the new speedo.
Keep the microfarad rating the same, it’s OK to go up on volts but not down and you can also order higher temperature ones if you want.
Wow what a Great video
Thanx
I have a 1991 f 250 4x4 my problem the OO not engaging
Car shifts ok 3 gear short shift 1 to second longer
You really know your ford
Thanks for the video. I had a bad joint on the capacitor you replaced (it looked corroded and green) so I removed it and re-soldered the cap back in place. This fixed a frustrating hard shifting problem that I have had for a couple of years.
In a previous attempt to fix this problem I also replaced the clock spring, and three capacitors on the PCM that looked suspect.
My problem acted up when it was hot outside, if I let the truck automatically warm up until the choke went off, after using the cruise control, and sometimes randomly. Seems to run puuuuurfect now.
Chris Jackson I have a Question would yours only shift hard or would it feel like it gets out of gear also? Because I am having similar issues, it feels like it gets out of gear and if I press the gas it just revs up and then it shifts hard and if I let go the gas it catches gear again but it only happens when its hot and I live in Texas so its always hot, Been having this issue on my 94 bronco for years already. Already overhauled the transmission, replaced vss, mlps, tps, fuel pressure regulator, pcm and still having same issue. I love my bronco but getting frustrated that I have replace a lot of part and still having same issue. Any help would be greatly appreciated. Thanks in advance
alexhinojosa331 Did you find the cause? My 1992 e350 is doing same thing, goes into neutral when hot out.
Update, it was a lot better and less frequent, but has recently gotten bad again. It mostly hard shifts, but prior to the hard shift it feels like it is reving higher and slipping. It is consistent with the speedo needle dropping and the electronic display going blank. It happens more often when the dashboard has been hot from sunlight, and especially at higher altitude for some reason. Time to take it apart again and inspect...
@@MrHollywood2021 I pulled my psom board out and it looks good. Going to check the connector at the transmission. Seems to be heat related, will neutral out of overdrive and hard shifts intermittently. Sometimes I could go hundreds of miles and it was fine. Seemed to get worse/ more frequent, over the summer. Need to try it now that it is getting cooler.
Fuel injection has no choke
Man oh man this is a great video even though I don't know a single thing about all those electronics. I mean nothing. I am having the exact same problem with a 94 F250 IDI diesel truck. My speedo after about 50 MPH goes completely nuts Also shortly after my truck would go into that same limp mode as yours. I checked the V-speed sensor but only for continuity. I don't remember what the reading was but assumed it worked. Now I don't know where to go next. That module behind the speedo is a complete mystery to me however the 1994 idi turbo-diesel does not have the same in 1994 does not have the computer hookups the 1995 truck would have. It is my understanding that the computer box in the truck only governs the transmission. I'm wondering if that could be where my problem is. I may have to ...but am afraid to send it to a trany shop and get a humongous bill only to find out it's a problem like yours. Does ford still even sell that circuit board? Seems ford doesn't want to even talk to you if your car is over 10 years old. God I admire people who know about all those diodes and compasitors. I watched your video and was amazed. I have been told it could well be an electrical problem though. I'm in Jacksonville Florida and wish I knew someone I could trust not to rip me off. You are a genius to figure all that out.
Great info! Thanks for taking the time to film and upload it.
Where did you get that big schematic that shows the PSOM in parallel with the speed sensor on the rear diff?
nevermind...I found it!
Great troubleshooting effort!
I wish I could thumbs up more than once! :)
I have a similar issue with my 1996 Ford F350 XLT I will save your video and use it as a guide. I bought the truck a while back. my speedometer is bouncing, and I have an Overdrive off light that will bounce, mine has failed to shift. Was intermittent.
Thanks for the youtube on this. I think I have the same orovkem. I smelt smoke at the same time it quit.
Hello, very good video, thanks for sharing. One question, I cannot find the resistance to be able to change it, which one is used in the video, the replacement one, mine has (10062 f00f -aa t dk) which one can I replace or change? thank you
Dude! you are awesome! Thank you for posting this!
In your case did the ODBII speed show on your scan tool? In my case the manual trip & odometer are increasing, gauge is reading 0 MPH.
There's that gunshot in the background again lol. Nice repair! just curious, what do you get for MPG with your truck?
Great video! I need the diode for mine. Would you by chance have the info on the diode so I can order some?
How would you know if your Transmission is in limp mode? what are they symptoms? what does it feel like? is there a visual indicator of such?
🤯 Mind blown but I think I know now what I have to do👍
You are very knowledgable. I have an e 150 van 1996. I had to floor it to get from 1st to 2nd, then rev it and let up to get into 3rd and 4th etc., overdrive light flashing, and speedo goes up wildly til it sticks a 35. I put in the new vss, and the shifting from 1-2 is much better. But the speedo still doesn't work right, and overdrive light blinks. Am thinking it's somewhere in the psom. Any ideas? thanks
What voltage metal oxide Vorister did you order/replace. I found that mine is shorted.
Hello, this repair has to do with no changes. In the automatic transmission I only have 1 and 2. And the Overdrive indicator doesn't come on??
Do you think it's possible to switch the psom mode from english to overseas (imperial to metric)? Mine is a Canadian truck with a metric speedometer but the psom mode is somehow Imperial. The speedometer reads way too high, and for some wierd reason the odometer reads way too low. They are clearly in the ratio range of imperial vs metric.....but going in opposite directions. Very wierd. I've heard some people mention about their speedometer switching from english to metric....for no good reason, and not knowing how to restore the original setting, if it's possible at all. Just wanting to investigate before I go through the difficult process of trying to track down a new metric speedometer odometer module.
Do you have a diagram? The top left pin fried and melted the back. I just had transmission work done/new torque converter. back and forth shifting. The shop said it was not there fault.
What would you charge to do a instrument panel on an old 84 Corvette?
Same with mine. Cold weather shifts fine worms up and it shifts hard
How can I find a shop that will fix my speedometer needle from jumping
Thank you for your video! Does this apply to a 1994 f-150 2x2?
Where did you buy everything to do the repair I have the same issue with my bronco would I be able to replace the whole unit from a junk yard work?
Did anyone ever find out what size varistor it is? I measured it and got 14mm diameter of the disk but having trouble with the voltage, max voltage, etc, etc. Can someone give the correct model number of the replacement varistor needed? Mine is burnt and unreadable. Thanks
Could you please tell me the diode you used for this fix, mine was completely destroyed. And i cant determine the sizing. Thank you for taking the time to help the rest of us.
blame goes to the varistor alone? any idea what may cause failure, outside of defective materials/age/heat cycling?
This video is kinda old but wondering if you might have an idea on a tach that blows the fuse. I changed out the cluster awhile ago and never had any problems. The new cluster had an airbag light but I don't have an airbag. The number 17 fuse popped and I switched it out but it immediately blew again and the air bag light is on. The only other thing I did recently was replace the turn signal multi switch because the left rear blinker wouldn't work and after replacing it the signal worked fine. Any idea where to start looking and testing. Thanks
Try a slightly larger fuse, don't go to high though
do you have a part number for the varister ???
Thank you!!!
Can I swap out this kind of speedometer to an old fashion one like from 80s????
Amazing!
Could you give a list of what all components you used and what the ratings are? I've been having issues with my E4OD for years giving me a VSS code just like yours. I actually have it apart on the table right now. I was replacing a leaky capacitor while internet surfing and happened upon this video. Now I want to replace more than I bought lol.
Very helpful video.
GREAT VID MAN
@Bassguitarist1985 did a continuation of this video with parts list of anyones searching for more info
ua-cam.com/video/vPbsvX2EIWc/v-deo.html
Great video! Could you please send me a part number for the surface mount diode and the metal oxide varistor? Thanks
hey man did you ever get the part numbers?? i am having this issue currently
@@BCW1154 ua-cam.com/video/vPbsvX2EIWc/v-deo.html
This guy made another video on it. Might have what your looking for, even though it’s been 6 months ha. His channel is bassguitarist1985
I'd like you to look at my PSOM on two of my F150's. Would you be interested? Not asking for free. Thank you!
Traductor in español de Venezuela gracias
Not sure why you'd use a different capacitor value. 100uF is a lot different than 220uF. 35V is only an indication of the max voltage that capacitor is rated for.
awesome video thank you!!!! saved me!
Lol ! Psom has nothing to do with transmission. Only ecm engine run perimeter
Come on you too, another boring video.!
Don't need to tell your life story..
Get to the point..!