Mechanics

WHERE IS THE HEATER CONTROL VALVE ON A 1500?

2001 Dodge Ram • 74,000 miles

When running the air conditioner on any speed but high it will switch to heat at any given time but mostly when coming to a stop. It will also do this when it is just on vent.
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Bcmezzie
October 16, 2011.



I believe you have a blend air door. If there is a heater control valve, it will be attached to the supply hose (heater hose) going to the heater core.