Mechanics

CHEVY HEATER FAN ONLY WORKS ON HIGH #5 SETTI

2003 Chevrolet Silverado

Heater problem
2003 Chevy Silverado V8 Four Wheel Drive Automatic 101000 miles

The heater fan only works in the high position. I have heat, but when I dial the setting knob to 1, 2, 3 or 4 their is no heat blowing through the vents. Where should I start to fix this issue?
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Fug
December 3, 2008.



Locate the blower motor resistor-it controls the blower motor speed thru resistances. The lower the no. The slower the blower will blow-

Rasmataz
Dec 3, 2008.
What do I do when I find the resistor?

Tiny
Fug
Dec 3, 2008.
Replace it


http://www.2carpros.com/forum/automotive_pictures/12900_blower_resistor_11.jpg


Rasmataz
Dec 3, 2008.