Question about 2003 Chevrolet TrailBlazer
Ac compressor kicks on/off at regular intervals (approx. 8 sec.) This causes the engine rpm to drop to about 300 (sometimes stalling the engine) and then it attempts to recover, spiking to about 1300. Each time the engine drops to 300 RPM the AC compressor kicks on for just a moment and then kicks right back out.
Additionally, the dashboard air vents quit discharging air at the same time this problem started. Air will come out on windshield and floor but not at dashboard vents. Not sure if this is related to the above problem but both started at same time.
You may have a faulyt IAC sensor not idling up enging when a/c is on
Posted on Jul 22, 2009
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Posted on Jan 02, 2017
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