Only defrost air works

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Only defrost air works

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Chevrolet >> Chevy Trucks, Vans & SUV's >> Silverado >> Only defrost air works

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Only defrost air works - 5/22/2008 2:23:05 AM

jwdry

Posts: 2
Joined: 5/21/2008
Status: offline

I have a 2003 silverado and changed the battery last week and know I noticed that only my defrost air works. Has anyone had this problem before and how do you find out how to fix it?

Post #: 1

RE: Only defrost air works - 5/22/2008 9:11:33 AM

northey87

Posts: 863
Joined: 10/17/2007
Status: offline

Welcome to the forum!!! It maybe the resistor on the back of the blower motor, that seems to be a common issue.

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''''''''''''''''95 1500 Silverado, 350, flowmaster Force II exhuast, S&B CAI.

(in reply to jwdry)

Post #: 2

RE: Only defrost air works - 5/22/2008 1:19:08 PM

shawnvw

Posts: 913
Joined: 1/18/2008
Status: online

Drop your glove box and inspect the wiring near the left side of the opening. Check to make sure it sn't chaffed against the steel support. You can try removing the HVAC controls from the vehicle for 10-20 seconds. reinstall it with the key in the OFF position. Start the truck and allow it to run for 60 seconds without touching the HVAC controls. The first minute will self calibrate the hvac controls

(in reply to northey87)

Post #: 3