2001 GMC SONOMA
99,000 MILES
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Heater blowing cold air. Replaced radiator and thermostat but still cold. What could it be?
Feb 9, 2013 at 10:55 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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