Mechanics

CHEVROLET VAN HEATER PROBLEM

1987 Chevrolet Van • 119,000 miles

Heater switch won't contril temp. So it stays on low. Check blower fan don't know if resistor or relay or switch. How do you tell if heayer switch is bad. I don't have money to replace parts or take to garage. Please help!
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Guest
February 16, 2013.



Go to resistor it may be by blower and turn to different settings using a stest light probe each wire to seeif power if there is then the resistor mayb e bad as well as blower relay. Relay usually controls high speed

Hmac300
Feb 16, 2013.