Question about 2004 Mercury Sable

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Driving on the highway with the AC on then it started blowing hot air. Drove down the highway and when exiting the highway and high speed driving, the car kept trying to stall, had to keep my foot down on the accelerator pedal. A friend tested the car and came up with the idle air motor being bad. I have seen idle air control parts and located it on the engine, but have not seen a motor?! It is a 2004 Mercury Sable, LS 3.0L gas engine, not flexifuel. It seems that maybe the motor has something to do with flexifuel? Should I just replace the air control and see what happens?

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You may have two problems here. The idle air controller (I.A.C.) has nothing at all to do with the vehicle's air conditioner. If the A/C is not working, I would look at the compressor to see if it is working. The compressor clutch could be causing an idle problem if the bearing is going bad. A quick test would be to remove the serpentine belt and see if the car idles fine. Do not run the engine this way for more than 30-60 seconds because the water pump will not be turning without the belt in place.

Posted on Jul 02, 2014

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Its not a motor, its an Idle Air Control valve.

Posted on Mar 28, 2011

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