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2022 Driveline Vibration 37-42MPH
- Thread starter UpinBst
- Start date
I don't normally drive the car at 100 mph +/-, so I cannot say whether vibration occurs there. However, at 40 +/- mph, after rear propeller shaft replacement, vibration is gone in cold weather.
I can pdf and send the entire diagnostic and analysis report to you if you want.
12/23 For reference, the following parts were replaced for this repair:
1 L1MZ*4R602*V SHAFT ASY - DRIVE
2 *W717822*S439 BOLT
3 *W719511*S439 BOLT
1 L1MZ*3B498*E CIRCLIP - INNER
I can pdf and send the entire diagnostic and analysis report to you if you want.
12/23 For reference, the following parts were replaced for this repair:
1 L1MZ*4R602*V SHAFT ASY - DRIVE
2 *W717822*S439 BOLT
3 *W719511*S439 BOLT
1 L1MZ*3B498*E CIRCLIP - INNER
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I'm not a mechanic so don't pin me on correct terminology guys 
A friend of mine (who IS a mechanic) works for various dealerships, including some Ford dealerships. On of them also had an Explorer PHEV ST line with vibration issues.
They changed the transmission, driveshaft, diff and what i believe is called the "transfer case". That finally fixed the issue.
They suggested that it would be easy to test this fix by unplugging the harness from the transfer case and drive it like that.
This causes a myriad of issues like esc, abs, tc, brake assist, auto hold etc to fail but you CAN drive the car like this. (Quite fun actually in the wet haha, easy burnouts)
So i discussed it with my dealership and they unplugged the transfer case, essentially turning it "off".
This made a world of difference!! I didnt even realize how bad the vibrations actually were until now! Even at other speeds the car is quieter and the wheel is completely still!
Under full acceleration i can notice a vibration on various speeds, but besides that it's completely gone. Even at the 100mph mark. My guess is that the power output still has to "travel" through the transfercase and under full load its just not keeping up as its still a defective unit in my mind.
Fingers crossed, replacing it with a proper transfer case will fix the issues completely.
Ill keep you guys updated as this process continues.
A friend of mine (who IS a mechanic) works for various dealerships, including some Ford dealerships. On of them also had an Explorer PHEV ST line with vibration issues.
They changed the transmission, driveshaft, diff and what i believe is called the "transfer case". That finally fixed the issue.
They suggested that it would be easy to test this fix by unplugging the harness from the transfer case and drive it like that.
This causes a myriad of issues like esc, abs, tc, brake assist, auto hold etc to fail but you CAN drive the car like this. (Quite fun actually in the wet haha, easy burnouts
)So i discussed it with my dealership and they unplugged the transfer case, essentially turning it "off".
This made a world of difference!! I didnt even realize how bad the vibrations actually were until now! Even at other speeds the car is quieter and the wheel is completely still!
Under full acceleration i can notice a vibration on various speeds, but besides that it's completely gone. Even at the 100mph mark. My guess is that the power output still has to "travel" through the transfercase and under full load its just not keeping up as its still a defective unit in my mind.
Fingers crossed, replacing it with a proper transfer case will fix the issues completely.
Ill keep you guys updated as this process continues.
@scoobysportD Did you get the replacement of the transfer case yet and got good results?
My appointment to check the vibration issue is tomorrow, so I'm looking at potential solutions.
Thanks!
My appointment to check the vibration issue is tomorrow, so I'm looking at potential solutions.
Thanks!
No not yet, 8th may its going to the dealer for "vibration tests" requested by Ford Cologne (EU technical head office).
Also, Ford suggested something in the line of loosening the engine-transfercase mounting as some have come out of the factory out of alignment. Re-align then tighten mounting again.
I HOPE that'll fix it but i kinda doubt it. Ford sees it as a necessary step for further diagnosis/troubleshooting.
Also, Ford suggested something in the line of loosening the engine-transfercase mounting as some have come out of the factory out of alignment. Re-align then tighten mounting again.
I HOPE that'll fix it but i kinda doubt it. Ford sees it as a necessary step for further diagnosis/troubleshooting.
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Follow-up: after a road test, the technician confirmed the vibration problem from the drive shaft and said that a message in "Oasis" had a fix for the problem. They ordered 4 parts (1 is BO) to provide the fix.
Can't tell if it's going to solve yet, but the following was ordered (it's in French, so description could vary):
Can't tell if it's going to solve yet, but the following was ordered (it's in French, so description could vary):
Do you perhaps have a service bulletin code?
My dealer wants my car to stay there for 2 months!! Got a mustang mach e as loaner, which is very small and uncomfortable for me. Just can't fina a good position in it. So far no news on any work being done to my car so no update on how they will fix it all.
My dealer wants my car to stay there for 2 months!! Got a mustang mach e as loaner, which is very small and uncomfortable for me. Just can't fina a good position in it. So far no news on any work being done to my car so no update on how they will fix it all.
Thread Starter
#57
Update: Over a year later w/seasonal studded tire swaps for winter with no change to the vibration, I Finally got it back into the dealer to have it diagnosed. The technician pinpointed it first time to the center support bearing. New driveshaft= zero issues and no more annoying vibration.
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My 2020 ST started knocking 2 days ago on morning cold start.
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