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Ive had my battery and alternator tested there both good and my battery light on my dashboard is on...
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Problem for Chevrolet Cars
Generic problem for all Chevrolet Lumina Cars
My heater won't warm up
Best Solution
posted on Jul 27, 2009
You either have a thermostat that is stuck open or the heater core is plugged. Get the vehicle warm and feel both of the hoses going to the firewall/heater core. Both of the hoses should be hot to the touch. If one is hot and the other considerably cooler, the heater core is plugged. If both are relitively cool, the thermostat is stuck open.
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This Problem Also Relates To:
2000 Chevrolet Blazer
2004 Chevrolet TrailBlazer
1996 Chevrolet Cavalier
1997 Chevrolet Cavalier
1999 Chevrolet Silverado 1500
1994 Chevrolet S-10 Blazer
2001 Chevrolet Malibu
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