Anyone can answer my question?

Asked by Guru9CNFJG Jul 30, 2021 at 12:19 PM about the 2012 Volkswagen CC 2.0T Sport FWD

Question type: Maintenance & Repair

Anyone have a answer to why my 2012 cc sport is stalling? after driving 45
mins with the air on, i get to a light and it just shuts off. I've replaced the
camshaft sensor, crankshaft and my PCV valve. Still idle while in park but drive
fine.if on highway.

1 Answer
155,295

james answered 2 years ago

Sounds like a bad IAC (Idle Air Control) valve. When you turn on the air conditioning an A/C request signal is sent to the computer. The computer speeds up the idle about 50 RPMs to compensate for the additional load of the air conditioning compressor so that the engine won't stall. A dirty or lazy IAC may not be responding fast enough on deceleration to prevent the stalling. Hope that helps! Jim

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