AIR CONDITIONER

Asked by Syntha Jul 19, 2019 at 03:04 PM about the 2004 Buick Rainier CXL RWD

Question type: Maintenance & Repair

WHY DOES MY 2004 BUICK RAINIER
STALLS WHEN I TURN ON THE AIR
CONDITIONER.

2 Answers
26,810

oilyspill answered 4 years ago

lot of makes and models, the pcm will raise the idle when you turn on hvac so it won't stall. I saw a code on your vehicle for low idle, talks about the tac/throttle actuator control. Get it checked out. I can't diagnose that from here. You can clean the throttle bore and around the throttle plate, see if it helps? Don't force the throttle plate. Could be other issues?

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11,235

FJ4072 answered 4 years ago

Classic symptom when the battery has been disconnected for any reason. Remove fuses #10 and #28 under the hood. Remove the throttle body and clean it with a sensor safe spray like Seafoam, rag, and or nylon brush. That will cure that. Make sure and clean the TB at least once a year or more often depending on driving habits or conditions.

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