Question about 2002 Pontiac Grand Prix

1 Answer

My heater only work on high and will not blow out defrost

My heater only work on high and will not blow out defost at all now and at times wont even work on high and i have noticed a few times imtermediate lights go out and cruise quit working as well and washer motor and rear defrost my main concern is blower motor and defrost i replaced what dealer said they were 99 percent sure it was a regulator or something under dash made no difference any suggestions to help please?

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Pontiac Master
  • 740 Answers

IF THE BLOWER MOTOR ONLY WORKS PN HIGH THEN YOU NEED TO REPLACE THE BLOWER MOTOR RESISTOR LOCATED ON THE SAME HEATER BOX AS THE BLOWER MOTOR

Posted on Jan 08, 2010

  • Dyna_man May 28, 2010

    I just put new resister in my car today.Fan was workin on 5 only then quit two weeks ago all together.Now only works on 5 and day lights go off at any setting but 5 on fan.Any ideas?

×

Ad

1 Suggested Answer

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Air Con on my 2009 Mercury grand marquis is giving me problems. Cold air blows out the defrost vents but will not blow out the main vents. Please advise


the blend door in the lwr air vents is stuck it should be down by the squerrl cage also it could be electronically controlled

Jul 14, 2012 | Cars & Trucks

1 Answer

My heater won't blow out any air unless it is on high with the fan blowing.


Hello let me verify.
1 heater wont blow out warm air unless on high?
possible clogged airfilter.low on coolant or antifreeze.

2 heater wont blow any air unless on high?
Could be a bad switch low ane med do not work.

Jan 14, 2010 | 2005 Jeep Grand Cherokee

3 Answers

Why wont my heater or ac fan not blow in my car?


Check fuse panel for blown fuse first.

Dec 21, 2009 | 1995 Mercury Tracer

3 Answers

Rear defoster test good does not work


Amazing that they can get away with charging that much for what should take under ten minutes to do!
If the heating grid is intact (checked with an ohmeter or continuity tester) and there is power at the grid connections, with a good ground, there is no reason that it should not work. What you did not mention is if left on and standing if the frost ever melts if given more time. (voltage may be present but may be low) The grid needs full battery voltage to operate correctly! If you have a volt meter available you can easily check it yourself.

Nov 16, 2009 | 2007 Chevrolet Equinox LS New Cars

1 Answer

Defrost not working well, amount of air blowing is low. Acts like a blockage problem, all other parts of the heater system works fine.


While in defrost mode press and engage a/c button on dash(leave in hot air position) and see if that helps with defrost issue. What this does is with a/c operating it removes moisture from the air in car which is all fogged windows are is humidity build up.Dont worry cold air wont blow through vents even though a/c on due to position of hot/cold adjuster.

Oct 24, 2009 | 1998 Honda Accord

2 Answers

Defrost problems


Sounds like it could be a thermostat problem (i.e. it needs to be replaced) or a heater core (worst case and really expensive).
First thing to do (and the cheapest) would be to check the coolant level, if it's low, top it off! Next would be to take out the thermostat and check it.)

Oct 19, 2009 | 1996 Ford Taurus

1 Answer

Speedometer/odometer does not work and rear defost always on


From your description, the instrument cluster has a short. These cannot be repaired, only replaced. This has become very common on 2000 and later vehicles, regardless of make.

Jul 06, 2009 | 2002 Kia Sedona

Not finding what you are looking for?
2002 Pontiac Grand Prix Logo

680 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

Marvin
Marvin

Level 3 Expert

85219 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...