Mechanics

WHY ****S TURN BUT WONT SHUT OFF THE VENTS

2002 Dodge Ram • V8 2WD Automatic • 182,000 miles

Heater ****s wont go on defrost stays on vent
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Marvey
September 26, 2011.




Check for vacuum leaks under the dash and the supply line from the switch to the engine. The air flow actuators are run by vacuum. If there is a leak, they won't change direction.
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Thankz

Tiny
Marvey
Sep 26, 2011.
Let me know what you find. If you're lucky, you may hear a hissing sound if you start the engine. They are a pain to find sometimes.


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