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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I have a Dodge ram 1500 with a 4.7, heater not working, it only blows out cold air. I put in a new thermostat and back flushed the heater core. Any idea would be appreciated, thanks in advance