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post #1 of 4 (permalink) Old 06-27-03, 12:10 AM
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Question A/C problem

I have a 2000 Taurus. A/C works perfect except when I step on the gas pedal. Every time I suddenly accelerate my car (more than 3000 RPM) the A/C blower stop blowing air from the front vents and start blowing the same cold air but trough the widshield vents (windshield defrost). Once I depress the gas pedal and RPM are low, the air flow switch back from the windshield vents to the front vents. Any idea whats going on?

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post #2 of 4 (permalink) Old 06-27-03, 12:16 AM
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Re: A/C problem

Sounds like some stray vacuum pressure happening, when you are accelerating vacuum pressure (which all comes from the inlet manifold) will be high, and it seems it is then pulling your vents to the screen, when you drop revs, the pressure drops and the vents go back.

I dont know the vacuum line setup on a taurus, but I bet it would happen on high fan with air vented from outside as well.


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post #3 of 4 (permalink) Old 06-27-03, 05:39 AM
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well when i press the accelerator my lights go brighter

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post #4 of 4 (permalink) Old 06-27-03, 05:53 AM
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Re: A/C problem

Phat XD: That'd be an alternator/charging circuit issue, as engine RPM increases, so does the voltage the alternator is producing, the higher the voltage, the brighter the lights.

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