2004 Other Chevrolet Models Heater stops working when not ac

2004 CHEVROLET
30,000 MILES • 6 CYL • 4WD • AUTOMATIC
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ANGELGREATFUL
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My chevy's heater only works when I am accelerating the vehicle. If I am going down a hill, or I am at a stop light, the heater starts to blow completely cool air. It goes from very warm to cool air in a matter of seconds.
My tempurature gauge looks fine although it may be very slightly higher than usual. The motor sounds fine, although the airconditioner sounds a bit noisier than it use to. This is a chevy Tracker.
Oct 30, 2008 at 9:44 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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