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Knocking sound from transmission (archive)
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Posted by Vincent Hor on March 24, 2002 at 08:49:50:

I own a 1981, 728i. The car has recently undergone engine overhaul. It is running perfectly except that there is "thud" sound everytime I lift my foot off the gas padel. Recently I also had the differential changed as there was some whinning at speed of 60kmh upwards. I have checked with four mechanics regarding the "thud" sound and obtain two different advise. Two said that the problem is due to the differential whereas the other two said that the problem is due to the long shaft. Could anyone familar with this problem assist?


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