Question about 2003 GMC Sierra 1500

1 Answer

05 GMC sierra heater blower stopped working. It used to work on setting 1-4 but lost 4 a couple weeks ago and now none of them work. Is this a bad blower , resistor or both?

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.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 749 Answers

The resistor is most likely bad but should still work on the highest setting.Would check pigtails to the resistor and to the blower motor for burnt or discolored wiring.You can try tapping the blower motor and wiggling the wiring harness too see if it will work on the highest setting. It is possible that the blower motor is bad as well typically when you lose the speed selection it is the resistor but you should always have high speed.

Posted on Nov 10, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that 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.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

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:

1 Answer

1995 Pontiac Grand AM SE. Heater fan works for weeks then won't go, try a couple hours later then it goes.


It sounds like the brushes on armature for (blower motor ) are worn. Sometime a bad spot on the armature from not being used often and also by being in the engine compartment where it is exposed to condensation. When the brushes stop at that particular spot, the blower will not start spin process unless it draws alot of current that may be why the fuse blew. You can remove the blower and examine or just make the change.

Jan 28, 2013 | 1995 Pontiac Grand Am

1 Answer

My 2006 GMC sierra 1500 heater fan stopped working. It started about 6 months ago when the high speed stopped working, now none of the speeds works.


This is your blower motor regulator. It is under the glove box and behind the blower motor itself. They are cheap to purchase but a pain in the rear side to replace. Hope this can help you out sir.

Feb 25, 2011 | GMC Sierra 1500 Cars & Trucks

1 Answer

2005 gmc sierra heater fan quit working. I lost the fifth speed months ago and a couple of days ago lost the other four, the first day the fan would come on sometimes while driving then quit after a while...


1-4 speed are the blower motor resister . It controls all 1-4 speeds, also it's under the passanger side dash around fan, the 5th speed runs off a fuse the is located in the fuse box. It's one of those square fuses , not the relays but fuses. The resister will run $15 and fuse $5 . Good luck. I have replace these before

Jan 03, 2011 | 2003 GMC Sierra 1500

1 Answer

The HVAC blower fan on my 2001 Pontiac Aztec stopped working on settings 1-3 several weeks ago. Last week it stopped working at setting 4 and today it stopped working all together. What is the most likely...


the blower not working on settings 1-3 is the blower motor resistor. this limits the power provided to the blower motor itself to change the speed. at setting 4 it is getting full power. since it quit on 4 also, i would still say the resistor needs to be replaced first, then see if the blower comes back. you may also need a blower motor. if you have a voltmeter you can just turn the switch to 4 and see if the motor is still getting 12 volts. if it is and doesn't run, it needs a blower motor too. if it's not, then its just the resistor

Feb 24, 2010 | 2001 Pontiac Aztek

1 Answer

My blower fan only works on high


you will need to order a blower resister its easy to swap out

Dec 11, 2009 | 2000 GMC Sierra

1 Answer

Kia Rio - Heater not working fan works but noise coming from fan.


open glove box and make sure that none of the papers from that can get down to blower motor

Jan 17, 2009 | 1998 GMC Sierra

1 Answer

2000 grand am se blower


It could be the actual switch maybe???

May 05, 2017 | 2000 Pontiac Grand Am GT

Not finding what you are looking for?
Cars & Trucks Logo

683 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

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

Answer questions

Manuals & User Guides

Loading...