Tourque Converter causing vibrations??
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Joined: Oct 2004
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Tourque Converter causing vibrations??
I have a '82 F150 w/ 302 V8 and what I beleive is a C4 - need to get under the truck and double check on the exact trans - but either a C4 or C6.
So the front input shaft on the trans leaks and engine is shot, but both are about to be rebuilt.
Trying to save money since this truck is a POS and think the tourque converter is causing this issuse but don't want to replace if not the issue....truck doesn't vibrate at any speed while accelerating or under load for that matter, however when on the highway, foot on the gas, and going downhill or very little load I get a vibration, this vibration will stop if I take my foot totally off the gas and let the truck "coast".
Would this indicate a issue with the tourque converter? Also making a varing pitch "squeeking" noise that changes as the trans shifts through 1st and 2nd gears until the truck gets driven for 10 miles or so - seems like it might be related to the part causing the vibration. It's not the drive shaft as it coincides greatly with RPM changes, which the drive shaft gradually increases and doesn't change RPM's as quickly as the "squeek" does.
Sorry for the lenghty post - hard to describe issue without all the little details.
So the front input shaft on the trans leaks and engine is shot, but both are about to be rebuilt.
Trying to save money since this truck is a POS and think the tourque converter is causing this issuse but don't want to replace if not the issue....truck doesn't vibrate at any speed while accelerating or under load for that matter, however when on the highway, foot on the gas, and going downhill or very little load I get a vibration, this vibration will stop if I take my foot totally off the gas and let the truck "coast".
Would this indicate a issue with the tourque converter? Also making a varing pitch "squeeking" noise that changes as the trans shifts through 1st and 2nd gears until the truck gets driven for 10 miles or so - seems like it might be related to the part causing the vibration. It's not the drive shaft as it coincides greatly with RPM changes, which the drive shaft gradually increases and doesn't change RPM's as quickly as the "squeek" does.
Sorry for the lenghty post - hard to describe issue without all the little details.
Lead Driver
Joined: Mar 2004
Posts: 8,922
Likes: 153
If your torque converter was bad you wouldn't be getting down the road. As far as the noise, I think you have a bad U joint.
As far as it leaking, either the front seal has just plain worn out, or the front pump bushing has worn enough enough to make the seal leak.
As far as it leaking, either the front seal has just plain worn out, or the front pump bushing has worn enough enough to make the seal leak.
Posting Guru
Joined: Mar 2002
Posts: 1,942
Likes: 3
From: Willamette Valley, Oregon
actually the torque converter could be going bad causing a vibration and still should be replaced during an over haul. But as I said before I would check you u-joints.
AND YES, a torque converter could be going bad and STILL you could operate a vehicle. I have seen this MANY times in 11 years as a master tech in a Ford dealership as a Transmission Technician. SHEEZ
AND YES, a torque converter could be going bad and STILL you could operate a vehicle. I have seen this MANY times in 11 years as a master tech in a Ford dealership as a Transmission Technician. SHEEZ
