David Echeverry |
12-03-2018 08:59 AM |
Rear heater not working
Hey guys, I have done a TON of research on this and other forums and cannot seem to find anything. I have a 2010 T&C 4.0 Limited and the rear heater just stopped working out of nowhere. It only blows cold air; not sure if it is A/C or ambient as it is cold outside. I have replaced the rear heater core, rear blend door actuator, flushed out the system, checked for a clog by running hose fed water through the rear return line. I can sometimes smell coolant but have dismissed a leak because it doesn't appear that I am losing any coolant, and I am attributing it to coolant that was soaked into the firewall cloth guard from when the heater Y-fittings blew out (I replaced with T-fittings instead of the cheap Y-fitting). I am running out of ideas, I thought maybe the T-fittings have something to do with it but I am pretty sure I used the heater a few times after that fix... I was going to replace the heater blower resistor but read somewhere that it only affects the fan operation and has nothing to do with the heat. Also, I just had a new motor put it but this issue was from right before that happened. After the new motor install the front heater stopped working as well for a while and out of nowhere it started working again. This is driving me crazy, any help will be greatly appreciated.
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