why does my 2003 chevy trailblazer shut off while im ideling when running ac

10

Asked by May 19, 2015 at 10:46 PM about the 2003 Chevrolet TrailBlazer LS 4WD

Question type: Maintenance & Repair

when I have ac going or fan while im at a stop sign or ideling my blazer shuts off.why?

3 Answers

445

Clean throttle body and Venturi

445

Highly possible that A C compressor clutch coil is shorting or compressor could be attempting to lock up. Have a technician run ac test pressures / also ohms read coil on AC compressor that engages clutch on AC unit, last have tech read available voltage on vehicle, to ECM with A C is switched on. Sounds like idle air control fail also

10

They did. Have had it for 2years now. Took it in to dealership when it was under warranty 3times and they still cant figure it out. It never shut off for them

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