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




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PorterHandyman: Replace both; the resistor block and the connector coming into that block (5? or 7) wires. They both overheat and melt the plastic around the pins, causing them to loose contact.

Great video, thanks for taking the time!

MultiBryank: Thank you excellent info.  have a 2005 sierra fan would only work on 5 then just stopped.  watched video replaced blower motor resistor and its fixed

shane bond: I have a 99 suburban, replaced the resistor and still nothing ! Took the fan out and hooked it directly to the battery and it works ! Put it back in so now where do I check ?

Matt D: Another well explained video on this model truck! Thanks 1Aauto!! You have help me learn and do so much on my truck vs other videos where I'd be guessing much more lol 

ahill7866: Thanks for the video, helped me out perfectly.

victor1964ish: Hello, I have a 2006 GMC sierra. Currently all levels of heat work however when warmed up there is an Oder like some wire burning. At times when I listen closely I hear the levels on the blower go weak. Could this be the resister or the blower motor?  

sta2011: Hello, 
I have a 2000 Silverado 1500. I just replaced the resistor because the motor only worked on High. Immediately after replacing the resistor, it started blowing cold air and only worked on defrost/floor setting. The controls weren't changing anything and they worked fine prior to the new resistor. Is it the control module? Could the blend door actuator and HVAC mode actuator have gone bad at the same time? Any ideas are helpful! I just had to drive 30 mins at -20 temperatures!

mic88ed: thank you sir !!!

FrankieNY59: All my speeds work except 4. 2001 Yukon. Do you suppose it's the same problem?

Sacha Parris: OK HERE GOES I HAVE A 2002 CHEVY SUBURBAN 1500 5.3L and at first i baught a new blower motor since mine was making all kind of noise , so i replace that one , then when i had put it in it was only working on 5th speed so i knew it was the resistor , so baught i spaking new one and add it to my new blower , now i notice it works on 1 2 3 4 but on the 5th its shut my heating systeme completly off > WTF IS IT NOW LOL PLEASE HELP ! CHEERS

JoshWalkerMedia: Ok so i have having a problem with my truck a 99 chevy silver ado when i turn the blower on ac or heat it vibrates a lot what would cause this? 

humourcar: Your videos are extremely helpful. Thank you for all your hard work.

ELAINE WALKER: What causes our AC in our 2004 Chevrolet Silverado to work when we first start our truck and then quit working after we drive for a few minutes, then start working 15 or 20 minutes later and continues working and not working. Could that be related to this blower resistor?

Larry Szczepanik: best demo so far ty

Harlan Reymont: Thanks for the great videos! I have an 04 Yukon SLT with dual front plus rear automatic climate control. Recently the front passenger side stopped pushing air in both heat and cooling modes. I was actualy driving the vehicle when it stopped working and I heard what sound like something ground to a stop. Rear and drivers side still work fine. I suspect a door actuator, what are your thoughts?
Thank you for your time!

teamsiems: Thanks for the video. I was able to change my resistor (2005 Yukon) in less than 1 hour. I didn't/couldn't have to take out the center screw on the outer casing. I took out all but and pulled down the plastic. Just remember the 2005 Yukon has the 4 hole version of the resistor (costs $25 more).

Maco Williams: Ok. So i recently bought a 2005 chevy silverado half ton. I drove it home and i turned the ignition off. but the A/C was still running and it ended up draining my battery. I pulled the cable and the A/C turned off as expected. But id really like to get it fixed. Is it my blower resistor? It wont even go to any other fan speed. It just stays at the same constant speed.

QQTrick1QQ: Thanks for the video, I think you could make a career under the dash on the passenger side.
If you had put the resistor in 180 degrees the plug would of fit?

StealthBomberr: I just did this for my '01 GMC Sierra. The switch went from 3-5 to just 5 then it just stopped working all together. And I just did this by myself in less than an hour! Thank you so much! It saved me a lot of money and plus I like to learn to do things by myself!

Allen Holley: Thank you for the help, The 3 levels of speeds of the fan wasn't a concern of mine then #4 and #5 acted up and were not working all the time and thought this could be a costly repair to my truck.  The truck has 241,000 miles on it and sometimes wonder if it's worth repairing.  When I pulled up this video it showed me exactly what was happening to the truck and with a little help from this video I was able to repair this at a low cost!!  The tutorial was very precise and helpful to make this a quick fix. Thanks again and I have used this site and will continue to use this for future repairs!!  

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