1983 Chevy Van no heat

1983 CHEVROLET VAN
10,000 MILES • V8 • 2WD • AUTOMATIC
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MIKE L. HARDY
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  • 1 POST
please help! My van's heater will only once in a while decide to work. When it does it will come on by itself and only on high. I have replaced the 3 control switches in the dash. Have jumped a hot led to the fan motor instant on. I believe its more on the vacuum side of a problem. No obvious signs of vacuum leaks though. Any thought?
Jan 27, 2009 at 8:55 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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