why does my valve tap
185

Asked by ceeroy Mar 08, 2007 at 05:36 AM about the 1990 Audi 90 quattro AWD

Question type: Maintenance & Repair

2 Answers

tropikalpirate answered 17 years ago

It could be a noise from your injectors. Use some cleaner in your next tank of gas.

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Since59 answered 17 years ago

Does the tapping noise go away after the engine has warmed up? If so not to worry. As tropikalpriate suggested, some injector cleaner is a good idea. If the tapping continues after engine warm up, youmay want to have a mechanic look at the valvetrain.

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