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1997 993 rough idle when warm


Vehicle Information: Year: 1997; Body Type: Coupe; Total Mileage: 30000;

I have the same rough idle as described in the 1/2/05 post. Pressing the lower AC switch eliminates the rough idle, I assume by raising the RPM by about 50. I have the AC on year round. In winter just increase the fan temp. to keep compressor off. Works for me. Any downside? Please pass on.

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