CHEVY

2003 Chevrolet Silverado

Tiny

fsewell

September, 30, 2007 AT 7:16 PM

I have a 2003 chevy silverado 5.3liter it has 80,000 miles. My question is when I turn on the air it always blows out the defrost. Will not stay where the control knob is. How do I fix this?

2 Answers

Tiny

BMRFIXIT

September, 30, 2007 AT 7:47 PM

Is it electronic if yes
need a motor
If not check you vacuum hoses

good luck

Tiny

dennyp

September, 30, 2007 AT 10:02 PM

I think you are having an issue with the mode door actuator. If you have a good scanner, you can compare the mode actuator desired counts to the actual counts. This will tell you if you have an actuator problem.

Please login or register to post a reply.

Climate Control Stuck on Defrost?
Blend Door Actuator Replacement
Cabin Air Filter Replacement Chevrolet Tahoe