Question about 1999 Pontiac Grand Prix

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Fan switch dial control dosent work 99 grand prix gt.if any one can tell me how to fix it.thank you.also ac unit is making a weird grinding sound.might be low on freeon.switch dosent work so i dont no if it blows cold air or not.if it needs recharged can a person still do that.or do you have to change it over to the new freeon.thanks...

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  • Pontiac Master
  • 21,873 Answers

I had a 97 and the knobs broke from time to time. Dealer part.
The compressor could be low on freon and/or oil but only if there is a leak in the system which would need to be repaired at some point.
A DIY can add oil or freon with a gauge kit sold at auto parts stores if the car is 1993 or newer ( R134).

Posted on Jul 05, 2012

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Posted on Jan 02, 2017

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  • 72 Answers

SOURCE: grand prix 3800 blowing only hot air please help

check the temp control switch in the dash

Posted on Jun 22, 2009

Brian032472
  • 150 Answers

SOURCE: 2004 pontiac gran prix gt

I would suggest replacing the blower motor resistor. When this component fails the blower will only work on one spped or none. This is a very common issue with all automotive models

Posted on Nov 04, 2008

garydillon
  • 42 Answers

SOURCE: ac vent problem

Damper/flap for driver's side is probably stuck. Try moving the selector from cold to hot several times. Also, move the recirc/outside air control if the previous doesn't work.

Posted on Jun 02, 2009

  • 32 Answers

SOURCE: 99 grand prix, Ac problems, problem with digital thermometer

JUST A BIT OF INFO WHEN YOU CALL THE PARTS STORE, THE PART YOU WILL ASK FOR IS CALLED THE AMBIENT CLIMATE CONTROL SENSOR. THEY WILL NEED TO KNOW THAT OR THEY WILL TRY AND SELL YOU A BUNCH OF PARTS YOU DONT NEED.

Posted on Jul 10, 2009

  • 176 Answers

SOURCE: 99 grand prix gt window regulator?

Noises are deceptive at best.

Until you pull the door panel you really can't be sure what it is.

It could be a rusted rail or the window fell off the rail , or, or,o or..you have one of them look and hunt problems.

Most window issues are easily fixed if you have the slightest mechanical apptitude, it won't be that hard.

I hope this helps you some

Thanks for letting FixYa.com...fix ya


Terry

Posted on Sep 14, 2009

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2000 grand prix, temperature won go from ac to heat, stuck on ac.


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Oct 15, 2015 | 2000 Pontiac Grand Prix SE

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Overheats unless ac is running


The thermostat may be stuck. If it dosent open then the engine will overheat. If you turn the ac on then the air rushing around the engine will help cool it down. Replace the thermostat and it should fix it

Dec 30, 2012 | 2008 Pontiac Grand Prix

1 Answer

My 2002 grand prix gt gas gauge doesnt always read properly, when i fill it up reads right, but always says full rare times while driving it will read correct, and after driving i put in park, and let idle...


replace the gas tank unit. 99 percent of the problems of this type require the tank unit to be replaced. it is a flaw with the GM cars, that GM refuses to have a recall on.

Sep 01, 2011 | 2002 Pontiac Grand Prix

1 Answer

I drive a 2004 Pontiac Grand Prix and the AC/Heater/Defrost is very tempormental. Sometimes it does work perfectly and come on just fine other times it makes a weird noise like it is trying to turn on and...


Most likely one of the blend door motors or wiring/ connectors. Check the plugs first. You will most likely need to remove the floor duct work to get to them.

Aug 19, 2017 | 1998 Pontiac Grand Prix

4 Answers

99 grand prix gt window regulator?


Noises are deceptive at best.

Until you pull the door panel you really can't be sure what it is.

It could be a rusted rail or the window fell off the rail , or, or,o or..you have one of them look and hunt problems.

Most window issues are easily fixed if you have the slightest mechanical apptitude, it won't be that hard.

I hope this helps you some

Thanks for letting FixYa.com...fix ya


Terry

Sep 14, 2009 | 1999 Pontiac Grand Prix

3 Answers

99 grand prix, Ac problems, problem with digital thermometer


JUST A BIT OF INFO WHEN YOU CALL THE PARTS STORE, THE PART YOU WILL ASK FOR IS CALLED THE AMBIENT CLIMATE CONTROL SENSOR. THEY WILL NEED TO KNOW THAT OR THEY WILL TRY AND SELL YOU A BUNCH OF PARTS YOU DONT NEED.

Jun 19, 2009 | 1999 Pontiac Grand Prix

2 Answers

Grand prix 3800 blowing only hot air please help


check the temp control switch in the dash

Jun 19, 2009 | 2002 Pontiac Grand Prix

1 Answer

2001 Pontiac Grand Prix GT multifunction switch problem?


I had the exact same problem, I changed the "ignition switch" because the contacts inside were burned, this is why you see all those troubles coming in and out at different moments. It costed me 150$ to do it myself, buy the switch on an online reseller, must cheaper than the dealer! Now everything is back to normal on my Grand Prix GT 99 exept that my headlights don't light up automatically when starting the car... I have to check my fuse/relay and switch to make sure everything is ok on that side.

Good luck.

May 31, 2009 | 2001 Pontiac Grand Prix

2 Answers

2000 grand prix fan speed


i have been having that same exact problem with my 2002 grand prix for over a year now, and when my ac is on the lower setting the it doesnt work plus the headlights and lights on my dash go out. On Max everything works. i changed the blower resistor(about $35), still doesnt work. i changed all relays and fuses related to the ac, still doesnt work. i changed out the actual ac control switch in the dash, still doesnt work. i have changed everything but the blower motor and have asked every mechanic and auto parts retailer i come across and no one knows the answer. The best answer i got is that it is probably a wiring problem like a short somewhere.

May 28, 2009 | 2000 Pontiac Grand Prix

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