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85 Dodge B150 not warming up

438 Views 8 Replies 6 Participants Last post by  AllanC, 
Vanube
1985 Dodge B150 with a 318.

I noticed that there is not a heater valve? AKA the two small rubber hoses going to and from the water pump and the heater core are uninterrupted. Is there supposed to be a heater valve on one of those lines? Is that why it may not be coming up to running temperature? Dropped a new thermostat in with no change. Thanks!
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This is the heater control valve and is vacuum operated.

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Also, check air flow to insure it goes through the heater core and into the inside.
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