Question about 2000 Pontiac Grand Prix

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1998 Pontiac Grand Prix Problem. 5 speed a/c heater/ Blower motor continues to run at high speed after ignition is switched off. Pulled 30 amp fuse right of glove box to stop blower motor. Blower then only runs in position 2 (low speed). Can duplicate problem by re-installing 30 amp fuse. Have not changed any other parts. Cures?

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I'd say that your blower motor resistor has shorted internaly.

Posted on Jul 01, 2009

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2002 Grand Prix heater/lights, My heater randomly works and if the heater doesn't work either does my head lights. I'm thinking it's my ignition switch?


If you mean that the Daytime Running Lamps (DRL) does not work when the blower motor does not work, then YES it COULD be an ignition switch problem. However, not very likely (please read on). The regular HIGH and LOW beam headlamps do not require the ignition switch to operate.

The main circuit that runs your regular headlamps also runs the blower motor HIGH speed. This has nothing to do with the ignition switch.
This circuit also operates the Power Mirror circuits and the Hazzard Flashers. You may want to check to see if these are also malfunctioning when this happens.

The Circuits for your other blower speeds go through the ignition switch along with the DRL control module, but your HIGH speed does not. So if it is your ignition switch, your HIGH speed should still work and your regular headlamps should still work. You will lose only your lower blower speeds and DRL if it is an ignition switch problem. You will have a bunch of other stuff going out if it is an ignition switch also. The ignition switch circuit that runs your DRL module also runs your Powertrain Control Module. So if it is an ignition switch problem causing your DRL to shut down, your engine will also be shutting down.

Jan 08, 2012 | 2002 Pontiac Grand Prix

1 Answer

1998 Pontiac Grand Prix GT - Blower Motor will not blow in the lower speeds, High Speed (5) only. Resistor has been replaced 3 times in the last twenty four hours, blower motor has been replaced twice in...


Your ignition switch is bogus. High speed runs directly off the speed control but the lower speeds go thru the ignition switch. Do not know why but that is the way it is!!!!!!!!
Replace the ignition switch and you will be back in business.

Jun 20, 2017 | 1998 Pontiac Grand Prix

2 Answers

01 grand.prix ac fan switch only works on high. has a duel temp controller when you turn fan off the only way fan comes back on is to move the temp controller levers


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!!

Feb 18, 2011 | 2001 Pontiac Grand Prix

2 Answers

Heater only works on high speed replaced switch and resister and relay


Did you check the hvac 10 amp fuse? There is a 30 amp fuse for high and a 10 amp for the lower speeds.There is also a blower motor control module.

Feb 14, 2011 | 2000 Pontiac Grand Prix

1 Answer

1998 grand prix gt blower motor stays running even when the car is turned off with keys out of the ignition. had to disconnect battery to stop it. not sure which fuse to pull because i have no diagram. any...


The blower should stay on for about 5minutes to cool the engine off. It isn't a problem unless it is running continuously after the engine is cooled.

Jan 15, 2011 | 1998 Pontiac Grand Prix

1 Answer

2001 pontiac grand prix, replaced blower motor, would only work on high, most of the time, at times it wouldn't work at all and when it did on high only. so I also replaced the resistor. I still only have...


Check for power at the HVAC CNTRL fuse with the blower set at any speed less than high speed. There should be power anytime the key is in the run position. If there is no power turn off the blower. If there is power with the blower off you need an ignition switch. The ignition switch is what supplies power to the lower speeds.

Dec 13, 2010 | 2001 Pontiac Grand Prix

2 Answers

Where is the blower motor located on a 1998 pontiac grand prix se?


under the dash below the glove box
if the blower motor is inop then
1st check for power on the purple wire at the blower motor
if it has power then you need a blower motor
if it does not have power then replace the resister
located beside the blower motor5-7 wire connector
TRICK TO REMOVING THE RESISTER
you will see 2 goldish colored bolts they are 5.5mm remove them
now the TRICK
there is a 3rd bolt you can't see pull down then pull towards you
this will BREAK THE RESISTER OR SLIDE OFF THE BOLT
then when the resister is out LOOSEN THAT BOLT OFF
the resister is slotted slide the NEW RESISTER in the bolt you just loosened then tighten the other 2 leave the hiden bolt loose
hope this helps

Jan 06, 2010 | 1998 Pontiac Grand Prix

1 Answer

Heater blower motor only works on high on 2002 pontiac gran prix se-instructions on diy replacement i have the part. Heater Fan works occasionally on speed 5 only. When it doesn't work at all the lights...


for the fan blower motor it could be the resistor or the fan control speed control switch is bad.for no lights replace the DRL RELAY for the lights. for the heated seats check the fuses.

Jun 01, 2009 | 2002 Pontiac Grand Prix

1 Answer

Heater motor only runs on high


Replace the heater blower resistor.

Dec 26, 2008 | 2002 Pontiac Grand Prix

1 Answer

Daytime running light/blower motor interaction


I have the same problem. I've heard the ignition switch harness is shorting out and replacing the ignition switch ($75-$125 part) will fix it. A few torx drivers and sockets are needed to replace it (a 4mm hex socket works for the column covers, but the bolts holding the ignition switch in are even smaller. I have it apart down to where I need a smaller torx socket to continue.)

Oct 13, 2008 | 2001 Pontiac Grand Prix

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