Question about 1986 BMW 7 Series
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 735i
Any help would be appreciated THANKS!!!
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
Posted on Mar 03, 2009
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Posted on Jan 02, 2017
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