Hazel Werts
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No heat or defrost working need to know what I need to do. Got two little guys to cold
1999 Chevy Tahoe
- Thread starter Hazel Werts
- Start date
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No heat or defrost working need to know what I need to do. Got two little guys to cold
drakon543
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Does the blower not come on or is there just no heat coming from the vents? Also what is the normal operating temp of your truck after it warms up. If there is no heat coming from the vents and the blower comes on and your truck is atleast over the 1/4 mark on the temp gauge i would say your bypass valve isnt letting coolant to your heater core or something is plugged. If the blower isnt coming on the blower might be bad or just a bad fuse. Lastly if the truck isnt getting above the 1/4 mark on the temp gauge you need a thermostat yours could be stuck open.
