Having problems with your 1986 BMW 7 Series ?

Thump Thump Thump coming from rear when Hard Accelerating in 1st

\015 When I hammer on the gas in first gear I hear and feel a thumping (thump thump thump) coming from the back of my car. It only happens if you accelerate fastand only in first gear. Could it be the rear diff? or u joint??Its an Automatic 4 speed trans in an 1986 735iAny help would be appreciated THANKS!!!\015 Posted / edited by AnonymousUser on : 21-01-2019

Answers :

It does sound like one of the universal joints. If you can raise the back end off the ground engage gear and the faulty u/v joint will make the wheel jump. This will let you know which side it is
Repair Help & Product Troubleshooting for 1986 BMW 7 Series

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