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Audi a4 2003 2.4 v6 surging slightly under low acceleration

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It could be a dirty IAC (idle air control vavle.) Take of the air duct work from the throttle body. Using a good cleaner or enginr Top cleaner.Run the car at about 1000 RPMs spary the cleaner directly into the IAC which is located right straight in the throttle body.turn engine off. let the cleaner sit for a few miniutes. then repeat procedure. if that does not work, remove the vavle and spray cleaner directly into the two holes on the valve.

Posted on Nov 10, 2008


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