Rough idling with a/c on

Asked by GuruVRSF5 Sep 08, 2018 at 03:39 PM about the 2002 Chevrolet Silverado 1500 Extended Cab 4WD

Question type: Maintenance & Repair

When pickup is idling engine runs fine and steady
until I push recirculate button or a/c is turned on.
RPMs get very low and idles very rough almost
dies. Turn either of those off back to normal. Any
suggestions.

1 Answer

510

The compressor could be going causing extra drag on the engine. You may need a tune up. The fuel pump could be going and not giving you engine enough fuel to idle.

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