HELP with HEAT!
Hey friends, I'm having issues with heat in my 2012 Volt.
Originally started a while back with the heat becoming intermittent. I read all I could on DIY heat repairs and did a few things, cleaning that little inline filter, replacing the circulating pump down by the front right wheel, etc.
Couldn't figure it out or fix it.
I ended up taking it to the dealer service center, where they had it for the better part of a month. After poking at it for a while, they said I needed a new heater core. I agreed to have them put it in (even though it was overpriced) because they already had all that time sunk into it, and it was supposed to fix the problem. I would be happy just to have it fixed and have a working car again.
After that repair, which did NOT fix the heat problem, they said I ALSO needed a new electric heater! They wanted WAY too much money for that.
So I brought the car home, and have slowly been working on doing the electric heater replacement myself. I can't believe how much work it was! I now have a used electric heater in the car and have it all back together.
I'm still having trouble with the heat.
But, since I have that new heater core in there and don't have the plastic cover over it yet, it's right where I can see and feel it while driving.
What's happening now is that the heat will come on for a bit. (I can actually see the heat indicator saying ON on the HVAC display screen) and the heater core will get hot, BUT the air coming out of the vents is either only warm or somewhat hot, but then turns cold after only a few minutes.
The heater core itself will usually still be warm. It's like the heater is running, but the fan is drawing air from somewhere other than through the heater core.
Heat does NOT work while running on engine power.
Air conditioning works fine.
Seems like it's perhaps just an issue of how heat is routed around? How would I troubleshoot this?
Thanks in advance!
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