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Heater Blower Motor Resistor

go44

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go44 New Member

go44

Posted
Posted

Changed the subject resistor in my 2002 Chevie Silverado...The purpose of this resistor is for speed control of the blower motor , in my case the blower would only work on #5 selection.......

There is a new modified resistor block to replace the original type..Cost in Canada was $58....plus tax from GM dealership...

The unit is located beside the heater blower , below glove compartment..Requires about 30 minutes to change for a slow old tech like me..

GO44

  • 4 weeks later...
BlackChevy69 New Member

BlackChevy69

Posted
Posted

Blower Motor Inop--Any help appreciated!

Hey from a newbie--I just replaced my blower motor resistor pack and the associated connector, both GM parts. The blower motor worked for 3 days and is out again. My initial problem was fan speed 5 went out (unusual if the electrical signal for '5' does not go through the pack) followed months later by speeds 1-4 going out. When I replaced the pack and connector, 1-4 worked, but speed 5 was still inop; and as stated, all inop three days later. If anyone knows what is going on, I'll take the help. Thanks

 

 

Blackchevy69

05' Silverado 1500 LT Crew

5.8L Factory Basic

Mods to follow (maybe)

  • 2 months later...
boomboy110 New Member

boomboy110

Posted
Posted

I have an 03 Sierra 1500 SLT Z-71 4wd. with a 5.3. I am having a problem with my blower fan, I'm not sure if it is the fan, or the climate controls. I have the digital Climate controls. The fan does not speed up when you increase it on the contoller. Sometimes it stays on low speed. Sometimes it stays on high speed. Sometimes, the fan will not shut off once you have turned off the vehicle. I have removed the fuse for the blower fan, because it can't staying on and killing my battery. I am not sure what the problem is, could it be that my resistor is bad, or is it something else?? Please help me!!

pr73 Enthusiast

pr73

Posted
Posted

I have a similar problem with an '05 Sierra. Will work on all settings but 5, and sometimes not at all. REALLY sucked this winter, but at hwy speed, it warmed up.

sonjaab Senior Enthusiast

sonjaab

Posted
Posted

I remember a few years back most GMs with A/C had a high speed

fan by-pass line (located on the firewall in the engine compartment).

It had a old style glass tube in line fuse.

 

I wonder if the new GMs have a seperate fuse for the high speed

fan circuit????????????..............geo

boomboy110 New Member

boomboy110

Posted
Posted

I found out that my truck doesn't have just the $15 resistor. It has a $98 module, it's the same as everyone else's resistor. But, instead of having a 7 prong input, mine has a 3 prong. I think it's because I have the automatic climate control, digital display. I am picking it up on sat. Hopefully that takes care of my problem.

boomboy110 New Member

boomboy110

Posted
Posted

Just an update. I finally picked up my module. It took care of the problem. Luckily I ran it through my Uncle's business account and got it for $73, versus the $98. But, still a alot more expensive than the typical resistor.

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