Question about 2003 GMC Sierra 1500

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 then come back on. Now it does nothing. I thought it might be the control since it lost the high speed awhile back.

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

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

Posted on Jan 08, 2011

  • OldsAlero Jan 14, 2011

    Is it the same for a 2002 Olds Alero? My fan is not working on the first and second speeds.

×

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.
the service is completely free 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

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

HEATER FAN QUIT WORKING. IS THERE FUSES?


Yes, the heater fan does have a fuse. If the fuse isn't blown, there's a sensor in the duct work behind the glove box under the dash that controls the fan speeds that you can check.



Dec 26, 2010 | 2006 GMC Sierra

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?


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.

Nov 10, 2010 | 2003 GMC Sierra 1500

1 Answer

Heater not working


The problem is probably the blower motor resistor. I'm not sure where yours is located exactly. They can be on the firewall under the hood or some are near the blower motor under the dash.

Dec 23, 2008 | 2006 GMC Sierra 1500 2WD

1 Answer

93 gmc sierra heater not working


THERMOSTAT REPLACE IF NOT SEE IF HOSES ARE CLOGGED SHOT OF AIR COULD HELP OR DISSCONNECT BATTERY CABLE 10-15 MIN CONNECT BACK TRY HEATER

Dec 20, 2008 | 1993 GMC Sierra

1 Answer

AC and controls no operating


replace the BLOWER MOTOR RESISTOR this will allow your low through high controls to work again.. as far as the squealing sound oil the fan or replace it
just saved you 100.00 pleas return the favor with the highest rating

Jul 13, 2008 | 2002 GMC Sierra

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

972 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

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

Answer questions

Manuals & User Guides

Loading...