2001 Pontiac Grand Prix PROBLEM WITH AC OR HEATER STAYING O

RICARDO MIRANDA

MEMBER
2001 PONTIAC GRAND PRIX
6 CYL
2WD
AUTOMATIC
105,000 MILES

OK THIS IS MY PROBLEM WHEN I START MY CAR SOMETIME THE AC COMES ON BUT ONLY ON HIGH AND SOMETIME NOT, I ALREADY CHANGED THE BLOWER RESISTOR THE AC CONTROL PANEL AND PUT IN A NEW BCM. WHEN I SHAKE THE IGNITON SWITCH THE FAN KICKS ON SOMETIMES, BUT WHEN I TRUN THE SWITCH FROM HIGH TO LOW IT BLOWS OUT THE AC AND MY IMFORMATION DISPLAY PANEL. WHERE DO I LOOK NEXT. COULD IT BE MY IGNITON SWITCH OR MAYBE A GROUND WIRE. WELL THANKS FOR YOUR HELP.

3 Replies

2CARPRO JACK

MECHANIC
11,533 POSTS

If you can mess with the ignition switch and make it work, then I would start there. Im not real clear on what you mean "blows out the a/c and info panel" do you mean it comes out of the vents and not defrost?

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Thursday, August 28th, 2008 AT 7:50 AM

RICARDO MIRANDA

MEMBER
2 POSTS

The a/c and or heat comes out in all the right places. I mean that the a/c and the display panel go out trun off when I put switch on low.

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Thursday, August 28th, 2008 AT 1:45 PM

2CARPRO JACK

MECHANIC
11,533 POSTS

Those are fed through the ignition switch, and if you can make them come on and turn off by messing with the ign switch, I would start there, if nothing else there is a problem with it if you can move it and make things go off and on

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Friday, August 29th, 2008 AT 7:43 AM