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Avalanche 2003-z71- rear diff noise after oil topup

iyad_alhassan

Full Member
Joined
Feb 20, 2012
Messages
75
I had done some maintenance on my chevy for rear axel bearing and seal.

Workshop mentioned to me they had topped up som3 75w90 acdelco diff oil after they removed rear axle shaft for bearings& seal replacment.

I took the car out of workshop and all was fine till i drove 100 miles, then whining noise started only when i accelerate. Moment i stop accelerating all is fine.

Today i took the car to workshop just to check oil level and found its low so i added another 300 ml( left from previous rear diff oil change) but still sound is there.

Anybody faced this issue please help me out. Thanks
 
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