1998 Chevrolet S10 Q&A

1998 Chevrolet S10 Question: How Do I Replace a Thermostat on Chevy S-10 Pickup

its blowing out cold air and the windows are frosting over inside -
Answer 1
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Answer 2
I'd not be too sure that it is exclusively a thermostat problem . Is your antifreeze reservoir up to the full mark , & does the engine temp gauge register up to operating temp ? or is it down on the cold side ? If it registers on the cooler side of the gauge & the fluid is low you may have an antifreeze leak - perhaps the heater core if the windows are fogging . -