No heat

Heater Blows Cold Air Most Often. Occasionally It Will Blow Hot Air But Changes Back And Forth While Driving Or Sitting Still. Today The Van...

Heater Will Blow Cold Air And Sometimes It Warms Up, But Mostly Cold, What Could Be Problem

I Changed Intake Gasket Last July. Everything Worked Fine Until About Oct. Occasionally It Would Overheat, And The Heater Blow Cold. Always...

The Filter Is Missing And The Actuator Seems To Be Operating Correctly. Since It Is Only A Problem On The Heat Side, Could The Heater Core...

At Idle The Heater Blows Cold. Go Down The Road Or Just Raise The Rpms And The Heater Blows Warm. Does Anyone Know What The Little Pump Is...