Question about 2004 Pontiac Grand Prix

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Heater and ac blower

The fan in my car ('04 Pontiac Grand Prix) works sometimes. If I go over a bump when the fan is not working then it comes back on.

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Chech the wiring under the glove compartment. My Gran Prix was doing the same thing & it was a loose connection in the plug under there.

Posted on Jan 29, 2010

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I have an '04 with approx. 79000 miles; the blower is going out on mine too. The motor is probably burned out and you will need to replace it. It's about $90 for the part. Kind of a pain to change; I changed the blower motor on my 97 'prix and I had to lay upside down on the passenger seat and work on it upside down. Other than a little physically uncomforable, not too hard to do.

Posted on Nov 26, 2008

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My heater/ac fan sometimes won't work. What do I check first?


$24the AC light does not light until you turn the fan on, that is ok, the issue with your fan only working sometimes is more than likely a faulty blower motor, in some cases it is the switch, when the motor does not turn on try tapping it and see if that makes it work, if it does then it is the motor.
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Nothing happens when i turn on my heater. No sound no heat. Sometimes it comes on when I hit a bump. Now nothing is happining. Could it be the switch behind? Could it have come disconnected some how? And...


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Dec 04, 2011 | 2004 Pontiac Grand Prix

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Hi!!
When the Blower Motor Resistor (controls blower speeds) goes bad, the blower motor works only on HIGH SPEED. REPLACE IT.
BLOWER MOTOR RESISTOR Removal & Installation
  • Disconnect negative battery cable.
  • Remove right lower instrument panel insulator panel.
  • Disconnect blower resistor connector located behind right side of dash.
  • Remove blower resistor screws and blower resistor.
To install, reverse removal procedure
Good Luck!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa!!

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2001 pontiac grandprix no blower heat/ac


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