How To Install Fan Speed Control Blower Motor Resistor Chevy Silverado GMC Sierra 99-06 1AAuto.com




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chris c: got a 1998 chevy 1500c basicly same problem except mine just doesn't shut off in the off position just stays on full speed and if i wiggle the knob or press on it, while it's on full speed it shuts off until i wiggle or press on it again think this would be the resistor or the fan speed control knob switch its self. any ideas?

artifactman660: I changed the resister still nothing, going to change the motor tomorrow I hope that fixes it.

RBG0979: Great video as usual. Many thanks.

Jacob Taylor: I am having a similar problem with my 2003 Sierra 2500HD. The A/C works when I drive it will blow out the vents, but the fan will not come on at all. I have the digital display with dual climate control. I am wondering if this is different? Thanks

Sal C: Hey thanks for the video! I just purchased a ac control module from 1A auto for my 2005 gmc sierra 2500hd. but I was curious if you knew where I can't get a wiring diagram for the system? Due to the previous owner installed a toggle switch running under the dash to two wires and when you flip the toggle switch the AC turns on but I don't like to have it rigged that way that is why I purchased the new module

Endless Florida: My 99 GMC sierras does the same thing. The AC only works when it is on level five. But when I accelerate the vehicle and the AC is on the engine makes a funny noise. The noise will stop as soon as I turn off the AC. What do you think that is?

mike johns: hey 1aauto I have a suburban but neither 1-4 blow air from the vents can the blower be the problem?

Mike Wheat: I replaced the resistor and I don't have speed 5. All but 5 works. Replaced wiring and block that connects to the resistor as well and no 5th speed. The resistor is bypassed to get speed 5. What is there left to check, fan control? The relay is built in to the resistor correct?

josh benware: thank you very much! this was an easy process, and im glad you made a video showing how to do this. $25 vs $125 to hire an ac tech... very much appreciated!

Scott Eckelberg: this helped alot

Joey Russell: This video was exactly what I was looking for! I will be ordering and replacing in my 04 Silverado. Also my setting dial doesn't work so it will only blow out of the defroster. Have you made any videos for that or any advice for me to fix it? Not a problem I've ever dealt with before. Thanks!

Drew Baden: My fan completely turns off when turning on 5 (high). Should I go ahead and order a resistor from your site or would this be a different issue? I'd think that high would remove all resistors from the circuit, but I'm unsure.

Brett Halloran: Do you guys sell the fan covers

Brian Peterson: Just followed your video and replace the one in my wife's truck. It was right on the money. Everything is back to working again. You guys are definitely a blessing and a Godsend. Thank you.

James84x21: If you are only getting one speed is it the resistor always? Or is the blower bad too? On my 2000 Silverado It only worked on 5, and then completely stopped working. Should I start with the resistor and then possibly the blower, or is my blower shot?

punknhead23: Just did my Ford Escape a few days ago and Papa says his 2005 GMC does not blow on 5. So am here to check out location. All blower levels work off of same resistor correct??? I mean to say it does not matter which # it does not blow on they are the same resistor? Thanks.

Ward Green: Great video! I was able to do this job on my own fairly easily. However, I have noticed my speeds have started to go away, again. If I replaced the resistor, do I now need to replace the blower motor? And if that is the case, will I need to replace the resistor again?

Thanks!

454chevy454: Thanks for the vid, 1 2 and 3 work fine only 4 and 5 dont work when i select 4 and 5 i could hear clicking sound coming from under glovebox i will do this repare to my 05 sierra hope its a fix thanks

EdenFollower: is this process also similar on the 06 silvrado?

Steve o': This video was awesome! I watched it once, bought the part (it arrived 2 days later.-Thank You) and did the install this morning on my wifes 2002 tahoe. She will be pleasantly surprised on her ride to work tomorrow. thanks again.

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