Iam getting a thump sound as i change gears and there is a slight delay in power getting to wheels if you turn the drive shaft by hand there is free play.
SOURCE: 2004 Lincoln Aviator thumping sound
The problem is the rear thermostatic expansion valve (TXV).
It is behind the left rear quarter trim panel.You can pull the panel back to access the valve to make sure that that is the noise.If so you will nedd to have AC system evacuated and replace valve and recharge the system. The part number is YF2Z-19849-AA.
SOURCE: i have a 1999 chevy s10 pick up zr2. the wheel
Easy way- replace whole axel housing from junkyard slice axels with torch or sawsall to remove posi unit then reassemble.sorry cann't think of any other way
SOURCE: 4 wheel drive wont engage on kia sportage 2001
there are vacum line one on each side behide the wheels see if they are broke or leaking i had the same problem
SOURCE: 1999 chevy silverado z71 5.3 ujoints just got
i would suspect bad driveshaft hanger bearing - to confirm, jack up back end of truck and hold up with jack stands. have someone in the truck to accelerate to the speed where you hear the noise, listen for the noise - a stethescope is very useful for this. good luck!
SOURCE: 2000 Chevy Express 1500 Rear
Sounds like the original wear pattern of the ring and pinion was disturbed when the pinion was tightened too much. Once a wear pattern is set in the gears you can't really change it. It might be the ring and pinion wearing that you are hearing and not a bearing at all. It's not the worst thing in the world but will cause the ring and pinion to wear improperly and is annoying. Differential work needs to be done by someone that really knows their stuff to avoid these little problems.
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