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2005 Chevrolet Colorado 1SB LS Z85 Crew Cab 126.0 WB

2005 Chevrolet Colorado
Trim Info:
Rear Wheel Drive, Crew Cab
21 mpg city / 26 mpg hwy
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November 5, 2012, 9:06 am

Adam L

Question: Fan/Blower motor problems

I've been getting no heat so i started with a new blower motor resistor and harness and nothing worked, so I checked the ground and then my fan was working...until you turn it up to high. When you turn it up to high it doesn't work anymore. I'm wondering if there is a short or whats wrong.

November 6, 2012, 7:14 pm

Tyler O

Check for power at the blower motor when the selector is turned to high. You should have battery voltage (full power)

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November 7, 2012, 9:04 am

Adam L

I figured out the problem after all. I unhooked the ground again, and scratched the fenderwall with a screwdriver around where the ground connects. It seems to work fine now. What an aggravating problem. Thanks for the help.

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