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What could cause a loud thump from the engine?In: Car Sounds |
Answer
Your question leaves a lot of unanswered questions. If "the engine thumps" each time you shift between drive and reverse, it could be a failing universal joint. This would definitely be more noticible (and damaging)when shifting at higher engine speed . you said that your engine was racing at ~2k rpm ; that sounds like a separate problem...stuck choke, linkage, etc...that should also be fixed, because engageing gears at those rpms is BAD for the entire drivetrain.
http://www.autozone.com/servlet/UiBroker?UseCase=S001&UserAction=viewSimpleDiagInfo&Parameters=info
First answer by Cho. Last edit by Timbo6108. Contributor trust: 498 [recommend contributor]. Question popularity: 140 [recommend question]
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