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Have been having problems with my heat on my 2007 Ram 2500. I flushed my heater core and had decent flow through it. Dealer changed my water pump and thermostat due to a warranty issue (Lifetime powertrain warranty is a wonderful thing). Pulled heater box out to change doors knowing that my defrost/floor vent door was broke for sure. No other doors were broke but changed them all with Blend door USA doors. Put it all back together, now I have minor amounts of heat on the passenger side but still none on the driver side. Wish I would have just changed the heater core while I had it all out. Any suggestions. Could the heater core be partially or mostly plugged and still have decent flow. Both hoses are hot going to and from the core. HELP
 

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Getting uneven airflow distribution, points to the doors.
Getting low heat, points to the core, being partially clogged or has air in it.
Bleeding can be tricky; make sure the rad. cap is higher than everything else, and the thermostat is opened (normal operating temp.).
If both hoses are hot, I would bleed again first.
Of course, the Cold-Hot selector could be defective....
Good luck
 
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