RockyS.

When I turn my air blower up to 5 it shuts or doesn't blow air out of the vents. 1-4 works just fine. Any thoughts? Was thinking a fuse (not sure which to check) or possible a sensor behind the dash or the switch. My truck is an '05 silverado.

Thanks, Rocky

earixson86

i have just the opposite 5 works great but nothag else 1-4 dont know any ideas 2004 chevy 1500 silverado

RockyS.

My dad says it may be the switch itself. In order to fix it he says that whole section needs to be replaced. I haven't looked into it lately but will let you know what I find.

Rocky

earixson86

i thank that it is the blower resistor it s like $30.00 i will let you know

RockyS.

Looking forward to it.

earixson86

the weather has been nice out side so i work on my truck and the resistor worked it was a 4 hole insted of a 2 it was $50.00 ah it works so i am happy

RockyS.

Thnx, I'll check mine out.

Coppertop71

Yep its could most likely be a character flaw found on 04-06 Silveraldo's it will lead to a burnt wiring harness on the harness going to the blower resistor meaning it's the harness that's part of the truck not the resistor. Its about a $200 fix just to buy the a new pig tail harness and new resistor from Chevy or you can buy a complete set from eBay seller autopartsdirect2you they sell the complete kit for $60 and its a AC Delco genuine parts too. If you want to be sure your getting the right part get the resistor part number from Chevy to cross reference. The resistor is located under the kick panel cover on the passenger side