This was SO helpful! I got a 1000hp clutch and flywheel installed and right after was getting the p300 + random cylinders like 4 and 6. I couldn't figure it out, I thought for SURE it was something the shop did, had them replace the tone ring, the sensor, plugs and reset the crank position sensor so many many times. I was in and out of this shop from end of July to mid November of 22 and had to put the car away still giving me the code. Now I'm truly beginning to think it's either my coil packs or the imrc runners. I feel like it could just be horrible timing that this started to happen right after the clutch installation and actually has nothing to do with it, still not positive tho. I'm going to order a new ported 18 manifold and coils and cross my fingers that it solves the issue bc I'm seriously out of ideas and considering taking the wiring harness apart to make sure all the wires are still good. Just was so weird this problem identical to what your describing happened right after I get my new clutch, flywheel, steel braided lines, short shifter installed. I went on a 28 hour road trip before the install and the car worked beautifully that's why I was so convinced it had to be something with the install. Thanks for the video and explaining it quite well.
Hey brother, I’m on the same boat with you, installed mantic 9000 kit from American muscle and literally right after the install the misfire check engine popped out. Kinda stuck atm idk what to do. My gt has a roush p2 tho. Did u fix the misfire? Also was the problem with the clutch? Please I need an update!
@@Mantix9 Now again be careful and be positive that your misfire isn't actually causing anything the happen when the CEL comes on, meaning you've got the same "ghost" misfire I've got caused from lightening up the flywheel so much. If u buy the tune from Wengerd which I recommend bc its worth not having to deal with this massive headache and a lot cheaper then buying and installing a new clutch n flywheel, you'll spend about 300 for the RTD+ and 300 for the tune roughly. Now that you've got him as a tuner let him know that you've got the same issue as me, which me and him are working on it together right now to solve it, but since he sent me the last tune 2 weeks ago I haven't had a single issue and no CEL, and I used to get them at least 3 times a week, so it very well might be solved. But idk how he tuned it but he's very good, not to mention my car picked up a lot of response and hp/tq over the "Big guy" tuners. Anyway it sounds like an add for him but I'm just so grateful after a year of replacing every single part that could possibly cause a misfire down to my battery which my oe one was fine. Hope this helps bud! I know I would of loved to have this info a year ago.
@@Mantix9idk what happened to my 3! Replies but I sent u 3 explaining everything lmk if u didn't get them bc it looks like there not here anymore and idk y...
Thanks for the video man! My 17' GT is doing the exact same and I've been troubleshooting for weeks now. I thought it was gas too but after a few tanks I determined that was fake news. Then went through the different driving modes, found out the codes would pop faster under sport track mode. Since mine is still under the 36 grand, I'll just take mine in this week to have the manifold replaced as well. Thanks again!
It’s been a while, but I’m just coming across this, as I’m having the same issue. I wondered if I was the only one who had the CEL/codes pop when I switched to sport mode. What was your fix?
@@hanzobeats5183 I'm thinking the imrc was the issue otherwise there might be an update? Not sure but I'm going through the same thing with my 17, it's a manual transmission but I still haven't figured it out, did yours happen to be the manifold (IMRC)?
@@R0cketRed it was. I pulled the manifold and and checked the IMRC’s, and they were stuck/broken. Replaced the manifold and everything was back to normal. Still don’t know if sport mode made a difference before it was replaced.
Hey man. I have similar issues with my 2016 ecoboost right now is all of this covered under the 60,000 power train warranty as I bought the car at a ford dealership about 3.5 years ago. Ty I have a misfire on cylinder 1 after the error was read at local parts store but they wanted to just sell me a coil and send me on my way and I said I’d get back to Them. Let me know Thx for the vid
It can b Vct solenoids my car is doing the same thing but I have po300,301,302,303,304. I changed my spark plugs and coils and got new Vct solenoids the Vct solenoids fixed my idle from jumping up and down but not my misfiring. I’m hoping I have a clogged fuel injector 😭 it’s a pain man.
Just Installed McLeod twin disc clutch and flywheel and steeda short shifter and now i keep getting the exact same codes. Car was running beautifully before install. Not sure what to do, really don’t want to take it to the shop if it’s something I can fix at home.
My 2018 GT Race Red Pp1 with 560 miles on it. Check engine light on with codes P0300, and P0103.🤔🙄. I just scheduled service appointment for next week.
Всех приветствую! У меня мустанг 5.0 2017 год, пробег 51000 миль, ошибки Р2006 - Р0300, скорей всего что то связано с вихревыми заслонками, так как датчики IMRC исправны и вакумный привод заслонок тоже в порядке!
OnTheDaily RGV idle was perfect ran fine however kinda had a surging around 35-50mph. No loss in power. If it wasnt for the cel I prob wouldnt have thought anything was wrong
Hazzardous having the same issue with my s550. I’ll get the same codes, and they come on when I’m on the highway then the check light will go off in about a day with around town driving. And when the light comes on I never notice or feel a loss of power. Swapped the plugs and coil with another cylinder and that didn’t solve anything. Thinking of swapping the intake manifold as you did in your video.
Travis Cannon it was the intake manifold flaps, one of them was stuck open or something. I got the boss 302 intake manifold and its been perfect ever since.
I have a similar issue but I have a roush supercharger so diagnosis is going to be harder. It seems to have a vacuum leak because when I rev up to 2500 it takes a few seconds to come back to idle sometimes, plus has a slight engine surge at light cruise speeds.
I found the spark plugs needed gapped again. I changed them and gapped them all properly. Don't let them drop down when installing them or the gap can close.
that problem only happens in idle? because my mustang gt shakes the engine a little when it is stopped. the car does not register any fault, it does not light any warning light. which problem could be?
Please help i have 2013 mustang gt a With boss 302 manifold long tub headers and airaid cold air i take.. and gettin misfire in bank 2 please help .. i changed the sparks and got new injectors coming idleing rough at idle
If the idle was rough after you changed the sparkplugs, pull them out and check the gap of all the plugs again. I placed new plugs in my 5.4 and one was bent while putting it in the cylinder. Once I pulled them out and verified the car ran fine. As for the check engine light... good luck!
If the idle is rough then it's a vacuum leak, check all your hoses, you've got a leak somewhere and the engine isn't getting the amount of air it thinks it's getting.
My car has the p0303 code and it’s eating up the coolant quick idk what to do. The car starts to stutter around 35-40 mph like it holds back power.. I’ve replaced all spark plugs and swapped the coils but I still get the same code so it can’t be the coil plugs. anybody have any idea
mine has the p0308 code and is also using a lot of coolant. opened up the intake manifold and the runners seem to open and close fine i dont know what it could be
@@Baeza_5.0 well i ended up taking it to the ford dealer ship and it turned out that the engine had a crack somewhere and coolant was leaking inside of it . I had to get a whole new motor 🙃 cost me around 9k for labor and new motor
I got a 17 and my check engine light came on got it looked at changed spark plugs the. Light went off I also changed gas to 93 and light would come back on so I changed coil packs light went off light came back on went off again it went on and off about a total of 4 times between the time of me changing spark plugs then coil packs it just came on tonight on my way home from work and I can tell my motor is feeling different when I drive mines a manual and when it misfires it make it not rev match basically when I upshift i change gears around 2500-3k rpm and it’s not doing it I’m going to call the dealership in the morning it’s still under factory warranty too so wish me luck please
@@natnaelt1744 the computer needed reprogramming now when I upshift it doesn’t misfire you could feel it lag almost like it wasn’t holding rpm to upshift
I am thinking maybe mustang GT,s are not good cars just something to take money out of your pocket especially when you buy them used up and run to near death
I also got a misfire code #2 + random misfire , I replaced all my spark plugs and coils boots and it didn’t fix anything glad you got yours fixed 👍🏼
I got one on my 2011 gt cyclinder 3 replaced coil and spark plug nothing hoping its just my injector or tune
2 & 8? Cause that's what I'm having 😒
@@mr.realistic9791 did you ever figure it out? My 2012 is doing the same thing
Did you ever get it fixed? I’m h in the same issues
I have same issu. Seen a vid where a guy had SCT tuner and he reset his crank and he said if you have p0300 codes it usually need crank reset
I had the same exact situation 2 days after owning it I got the code
I just got this CEL on mine. If my manifold is bad, I wonder if the dealer will put on my Cobrajet manifold.
This was SO helpful! I got a 1000hp clutch and flywheel installed and right after was getting the p300 + random cylinders like 4 and 6. I couldn't figure it out, I thought for SURE it was something the shop did, had them replace the tone ring, the sensor, plugs and reset the crank position sensor so many many times. I was in and out of this shop from end of July to mid November of 22 and had to put the car away still giving me the code. Now I'm truly beginning to think it's either my coil packs or the imrc runners. I feel like it could just be horrible timing that this started to happen right after the clutch installation and actually has nothing to do with it, still not positive tho. I'm going to order a new ported 18 manifold and coils and cross my fingers that it solves the issue bc I'm seriously out of ideas and considering taking the wiring harness apart to make sure all the wires are still good. Just was so weird this problem identical to what your describing happened right after I get my new clutch, flywheel, steel braided lines, short shifter installed. I went on a 28 hour road trip before the install and the car worked beautifully that's why I was so convinced it had to be something with the install. Thanks for the video and explaining it quite well.
Hey brother, I’m on the same boat with you, installed mantic 9000 kit from American muscle and literally right after the install the misfire check engine popped out. Kinda stuck atm idk what to do. My gt has a roush p2 tho. Did u fix the misfire? Also was the problem with the clutch? Please I need an update!
@@Mantix9 Now again be careful and be positive that your misfire isn't actually causing anything the happen when the CEL comes on, meaning you've got the same "ghost" misfire I've got caused from lightening up the flywheel so much. If u buy the tune from Wengerd which I recommend bc its worth not having to deal with this massive headache and a lot cheaper then buying and installing a new clutch n flywheel, you'll spend about 300 for the RTD+ and 300 for the tune roughly. Now that you've got him as a tuner let him know that you've got the same issue as me, which me and him are working on it together right now to solve it, but since he sent me the last tune 2 weeks ago I haven't had a single issue and no CEL, and I used to get them at least 3 times a week, so it very well might be solved. But idk how he tuned it but he's very good, not to mention my car picked up a lot of response and hp/tq over the "Big guy" tuners. Anyway it sounds like an add for him but I'm just so grateful after a year of replacing every single part that could possibly cause a misfire down to my battery which my oe one was fine. Hope this helps bud! I know I would of loved to have this info a year ago.
@@Mantix9idk what happened to my 3! Replies but I sent u 3 explaining everything lmk if u didn't get them bc it looks like there not here anymore and idk y...
Thanks for the video man! My 17' GT is doing the exact same and I've been troubleshooting for weeks now. I thought it was gas too but after a few tanks I determined that was fake news. Then went through the different driving modes, found out the codes would pop faster under sport track mode. Since mine is still under the 36 grand, I'll just take mine in this week to have the manifold replaced as well. Thanks again!
It’s been a while, but I’m just coming across this, as I’m having the same issue. I wondered if I was the only one who had the CEL/codes pop when I switched to sport mode. What was your fix?
@@hanzobeats5183 I'm thinking the imrc was the issue otherwise there might be an update? Not sure but I'm going through the same thing with my 17, it's a manual transmission but I still haven't figured it out, did yours happen to be the manifold (IMRC)?
@@R0cketRed it was. I pulled the manifold and and checked the IMRC’s, and they were stuck/broken. Replaced the manifold and everything was back to normal. Still don’t know if sport mode made a difference before it was replaced.
Would you get a flashing check engine light?
How much was the intake manifold..?
Hey man. I have similar issues with my 2016 ecoboost right now is all of this covered under the 60,000 power train warranty as I bought the car at a ford dealership about 3.5 years ago. Ty I have a misfire on cylinder 1 after the error was read at local parts store but they wanted to just sell me a coil and send me on my way and I said I’d get back to
Them. Let me know Thx for the vid
This is what im going through. Did they cover it? Im at 48k miles.
It can b Vct solenoids my car is doing the same thing but I have po300,301,302,303,304. I changed my spark plugs and coils and got new Vct solenoids the Vct solenoids fixed my idle from jumping up and down but not my misfiring. I’m hoping I have a clogged fuel injector 😭 it’s a pain man.
Same exact thing 2nd day for me too
Just Installed McLeod twin disc clutch and flywheel and steeda short shifter and now i keep getting the exact same codes. Car was running beautifully before install. Not sure what to do, really don’t want to take it to the shop if it’s something I can fix at home.
crank relearn
My 2018 GT Race Red Pp1 with 560 miles on it. Check engine light on with codes P0300, and P0103.🤔🙄. I just scheduled service appointment for next week.
I got the exact same car same year same package even same color. Same thing, what did they do to yours? Did they fix it at no cost?
@@atomicgamez445 Ford just reset computer, no problems since.
Всех приветствую! У меня мустанг 5.0 2017 год, пробег 51000 миль, ошибки Р2006 - Р0300, скорей всего что то связано с вихревыми заслонками, так как датчики IMRC исправны и вакумный привод заслонок тоже в порядке!
I have the same thing going on with my 17 gt. It only has 33000.
Was your idle rough or anything? Or you just got the check engine light but car ran perfect?
OnTheDaily RGV idle was perfect ran fine however kinda had a surging around 35-50mph. No loss in power. If it wasnt for the cel I prob wouldnt have thought anything was wrong
Hazzardous having the same issue with my s550. I’ll get the same codes, and they come on when I’m on the highway then the check light will go off in about a day with around town driving. And when the light comes on I never notice or feel a loss of power. Swapped the plugs and coil with another cylinder and that didn’t solve anything. Thinking of swapping the intake manifold as you did in your video.
@@matt38y3 when u had that issue did it have an idle issue?
abdulmalik34 I’m having the same exact issue with my s550 as well did u ever figure out what it was? Plz help lol
Travis Cannon it was the intake manifold flaps, one of them was stuck open or something. I got the boss 302 intake manifold and its been perfect ever since.
I have a similar issue but I have a roush supercharger so diagnosis is going to be harder. It seems to have a vacuum leak because when I rev up to 2500 it takes a few seconds to come back to idle sometimes, plus has a slight engine surge at light cruise speeds.
William Hensley did u find out the problem
Did you ever find the issue I also have a blower and a misfire on cylinder 3
I am curious if anyone ever resolved this… I am having the exact same problem!!!
I found the spark plugs needed gapped again. I changed them and gapped them all properly. Don't let them drop down when installing them or the gap can close.
Thank you… I’ll look into that.
that problem only happens in idle? because my mustang gt shakes the engine a little when it is stopped. the car does not register any fault, it does not light any warning light.
which problem could be?
mine also shakes at idle but i was getting the code
was the problem solved because you placed a new manifold ?
yes it was, been running good even 3 months later so far
I have same shit with boss manifold. I hope I can fix it
4v_venom did you fix it?
Please help i have 2013 mustang gt a
With boss 302 manifold long tub headers and airaid cold air i take.. and gettin misfire in bank 2 please help .. i changed the sparks and got new injectors coming idleing rough at idle
If the idle was rough after you changed the sparkplugs, pull them out and check the gap of all the plugs again. I placed new plugs in my 5.4 and one was bent while putting it in the cylinder. Once I pulled them out and verified the car ran fine. As for the check engine light... good luck!
If the idle is rough then it's a vacuum leak, check all your hoses, you've got a leak somewhere and the engine isn't getting the amount of air it thinks it's getting.
mine also idles rough at idle, i checked the intake mani and the runners all open and close so it might be somethign wrong with the controller
My car has the p0303 code and it’s eating up the coolant quick idk what to do. The car starts to stutter around 35-40 mph like it holds back power.. I’ve replaced all spark plugs and swapped the coils but I still get the same code so it can’t be the coil plugs. anybody have any idea
mine has the p0308 code and is also using a lot of coolant. opened up the intake manifold and the runners seem to open and close fine i dont know what it could be
@@Baeza_5.0 well i ended up taking it to the ford dealer ship and it turned out that the engine had a crack somewhere and coolant was leaking inside of it . I had to get a whole new motor 🙃 cost me around 9k for labor and new motor
@@NossIsTooSick no way thats insane 🤦🏽♂️ i hope mine is fine
I got a 17 and my check engine light came on got it looked at changed spark plugs the. Light went off I also changed gas to 93 and light would come back on so I changed coil packs light went off light came back on went off again it went on and off about a total of 4 times between the time of me changing spark plugs then coil packs it just came on tonight on my way home from work and I can tell my motor is feeling different when I drive mines a manual and when it misfires it make it not rev match basically when I upshift i change gears around 2500-3k rpm and it’s not doing it I’m going to call the dealership in the morning it’s still under factory warranty too so wish me luck please
What was the issue?
@@R0cketRed it needed to be reprogrammed
@@loganblackGTwas it ever tuned? I might be having the same issue
@@natnaelt1744 the computer needed reprogramming now when I upshift it doesn’t misfire you could feel it lag almost like it wasn’t holding rpm to upshift
What if its a supercharged?!
Anyone find out anything regarding this issue when supercharged?
I have 2020 gt with 13k miles and p0304 came on 🤬 if I try and fix it myself would it void my warranty?
Dont do that its under warranty, let the dealer fix for free
Same code for mine I'll take it in next week :(
Did they replace your intake manifold? I'm getting the same code
What happened? I’m in the same situation
DavyDave1313 I had an after market intake and tune so they didn’t work on it. I removed and reinstalled the intake reset the tune and it worked.
It will go bad again and break the shaft because it’s made of plastic.
what will go bad again and why?.. Im having the same codes pop up and want to know if to invest in the intake manifold
BaffourHD the IMRC in the intake manifold , the shaft is made of plastic and is prone to breaking.
Mustang Guru can we still drive with the check engine light on. Mine drives good still
@@just_a5.7 you still driving it?
I am thinking maybe mustang GT,s are not good cars just something to take money out of your pocket especially when you buy them used up and run to near death
How the fuck are you averaging 20mpg?!?!?
I was thinking the same thing 😂. I'm like 17 and that was babysitting her with a new clutch