i have a 2012 dodge avenger the passanger side blows cold air and driver side blows ho air. what do i need to do to fix it?
what has happened is either your coolant system is contaminated or you have casting sand plugged in the heater core...with the engine cold open the radiator cap and look at the coolant and see if there is a film that has coated the inside walls of the radiator if there is than the system is contaminated the radiator, heater core will need to be flushed and possible replaced if the heater core does not come back
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