Chevrolet Astro Van Heater Not Hot

Reader Question: I have a problem with heat in my 1995 Chevrolet Astro Van. Blower works fine and anti freeze full thermostat seems to operate runs at about 170 degrees. I need help badly as I live in Minnesota and high today is 5 degrees.

Thank you,

Steve

Hey Steve,

Feel the two heater hoses. They should both be hot to the touch when the engine is at normal operating temperature. If they are, you probably have a control issue inside the dash or the dash selector switch.

If only one heater hose is hot, you might have a heater valve problem or the heater core is stopped up with rust and needs to be back flushed.

If heater hoses are hot, you might have either a thermostat problem or a restriction in the radiator that is not allowing the hot coolant to circulate through the system.

Here is more about heater cores:

Car Heater Not Hot

Blessings,
Austin Davis