When I turn on my AC my truck strats to sputter when I'm driving

Asked by Mar 16, 2014 at 03:42 AM about the 1999 Mercury Mountaineer

Question type: Maintenance & Repair

2 Answers

310

Either your AC compressor is locking up and putting a strain on your engine. Unplug your AC compressor from engine and you will know!

101,535

If only does this at an idle. Possibly dirty/faulty idle air control valve. It's job is to idle vehicle up when at idle and ac or other acc are running.

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