I have a 2001 chevy astro van. the heat is not working. the blower runs but pushes only cold air inside the cabine. i already replaced the engine radiator and the stat. Can you guys help me out on this any idea highly apreciated... thanks rafael
The problem is probably the heater core, it can become clogged with dribris. this stops heat from the engine getting to it and then no heat.
Blend door actuator could be bad.
If you get no heat from heater core ...feel the coolant lines that supply the heater core. With heater controls on and engine fully warmed up, the lines should be very warm to hot. If not you may have a bad heater control valve.
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