Could also be the temperature door actuator under the dash. Hope that helps! Jim
Heater blows cold air changed thermostat still cold air
2000 Chevrolet Blazer
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Maintenance & Repair
My heater doesn't have hot air and my ac doesn't blow cold air just blows hot air there was water that use to get in my floorboard on passenger side what's wrong can u help me out please
2000 Chevrolet Blazer LS 2-Door RWD
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Maintenance & Repair
Heater blows cold air
2018 Chevrolet Tahoe Fleet 4WD
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Maintenance & Repair
A new radiator, new thermostat, checked all fuses, flushed heater core, checked hoses, still no heat, just blows cold air. What else can I look for? Also found a glass fuse on the floor front passen...
2002 Chevrolet Blazer LS 2-Door 4WD
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Maintenance & Repair
The switcher thingy (don't know what its called, modulator or something like that) wont work. When we switch from front cabin panel vent heat to windshield heat it doesn't change and still blows from ...
2000 Chevrolet Blazer Trailblazer 4-Door 4WD
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Maintenance & Repair
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