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2004 Chevrolet Silverado Fan Blower

Tiny
DANIELS16
  • MEMBER
  • 2004 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
Just recently I have been problems with the blower on my 04 Silverado. It quit working so I unplugged the resistor and plugged it back in. It started working again but now only works intermittently. I can wiggle it a little bit here and there when its not working and it'll kick in. I have the dual climate control and even when the fan doesn't work 100% I still have a slight air flow of heat is if the fan was on 1. What is going bad? Is it the wiring harness, blower resistor or blower motor?
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Monday, February 9th, 2015 AT 11:19 AM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
See pic and call dealer this may be fixed for free. If not harness is $100 approx. And resistor is 60 from gm parts direct.
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Monday, February 9th, 2015 AT 12:12 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
I would replace the blower motor speed resistor and clean and enhance the electrical connectors terminals. Here is the location and how to replace the part correctly. I would replace the blower motor as well because it can cause the resistor to go out. Check out the images (below). Let us know what you find.
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Saturday, July 6th, 2024 AT 6:12 PM

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