does anybody know why my geo tracker revs up when i turn on accesseries
8 Answers
The AC unit draws a lot of power from the engine so the engine management computer may increase the engine speed to accommodate the extra demand.
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just the heater fan. headlight switch or tuning wheels makes it rev up,
The power steering pump and alternator also put loads on the engine. How much do the revs increase?
Searched internet and believe it could be the PVC valve? I'm gonna try that first