Car wants to cut off when air/heat is on

2005 MITSUBISHI GALANT
200,000 MILES • 4 CYL • AUTOMATIC
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KKWEBB87
  • MEMBER
  • 1 POST
When i stop and the air or heat is on my car acts as if it is going to cut off, but once i turn the air or heat off it runs just fine.
Apr 3, 2018 at 9:43 AM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,189 POSTS
Hello,

This sounds like you have an air conditioner compressor that is going out. I know it is weird but the compression runs with the heater on. Here is a guide to help you see what you are in for when doing the job:

https://www.2carpros.com/articles/replace-air-conditioner-compressor

It could be a dirty throttle body as well. I would try this first,

https://www.2carpros.com/articles/throttle-actuator-service

Please let us know what you find. We are interested to see what it is.

Cheers, Ken
Apr 4, 2018 at 11:25 AM
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