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Old 09-22-2012, 01:47 PM
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sspeer sspeer is offline
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Join Date: Sep 2012
Location: Ca
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Vehicle: 2001 Dodge Ram 2500
Color: Blue
Engine: 1994-2001 488ci (8.0L) LA V10 300 hp 450lb/ft
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I have a post regarding this with a succuessful end. Try removing the blend door motor (it would be above a passengers left foot.) 2 screws, the rear one is tricky,but doable. You can move the blend door by hand, toward you is cold, away from you is hot. Pull out the glove box and feel the heater core inlet and outlet hoses to see if they are hot. The left one is slightly cooler if working properly. If no heat, flush the entire system, pull the heater core hoses and flush that thing both ways, (I soaked the core in CLR for 35 minutes, not recommended by some mechanics) then flush it like crazy. Put in a new thermostat, and you should have heat. That should cover it, hopefully one of the first things is the problem. Good luck.
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