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Is it better to pay for expensive heater repair or buy a cheap power invertor kit w/spaceheater

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2014 Heater Assembly Replacement Nightmare

3135 Views 30 Replies 15 Participants Last post by  gman1
The Volt uses a heater system that is complex and expensive to replace. It uses a heating system which relies on an electric heater to heat up coolant that is going through the coolant line. The heated coolant is then sent to a pump which then provides heat to the cabin. Without an in-line coolant heater, the system does not work and requires the replacement of the in-line coolant heater (also known as GM part no: 22851153, 22747764, 22788440, 22792167, 22794426)

I have been trying to fix this problem by first going to a local GM dealer, only to find them asking 3800 dollars for replacement of the inline coolant heater and heater pump and the 8 hours of labor it takes to get access to the parts and replace them. Just the in-line coolant heater alone would cost 1700 dollars. I did find a new one on GM part exchange for 1000 dollars. I don't have that much available to spend on repairs so I then found a local mechanic that would be able to use parts I found on used car parts online search service.

That lead me to Green Light Auto in Southern California, where they had the part listed including the correct part number. Only problem is they ripped the part off and the High Voltage wire and connector were missing when I received the part in the mail. The wires cannot be spliced according to a certified GM Volt tech because that could heat up and start an engine bay fire.

So back I went to look for another replacement part, and there are not many used in-line coolant heaters available anymore (even though they are interchangeable through all Gen 1 years). The next place I called still hasn't returned my call, my price quote, or any of my emails. All I wanted to know was if the part they list on their website and on is actually the GM part number I listed earlier.

So now I'm stuck buying the $1,000 plus tax in-line coolant heater new (can't afford) or just buying the power inverter kit that is on this forum and plugging a space heater into it which all together would cost $500. Which is the best way to go in this situation, and has anyone else dealt with this? Been a Volt owner for over 2 years and it's a 2014 Volt with 111k miles.
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Go on eBay buy a Chinese diesel heater two wires from your battery you have to drill a hole in your floor in the back hatch area too exhaust the pipe turn the remote on when you climb out of bed the remote will activate the heater in your car then go outside and get in a warm car that's what I do and I've set one up for my wife also both of our heaters have quit working but our Chinese diesel heaters work fine
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Message me if you would like instructions how to locate the hole you'll have to go through three layers the top floppy protection the metal compartment wear the battery sits and then through the very bottom mud flap under the car
What did you end up doing about your heat
Great information thanks for taking the time I'll have to tackle that one next I have two volts same problem no heat except for the heater which I have installed called a diesel parking heater
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