Heater blowing cold air

1991 VOLVO 740
208,000 MILES • 4 CYL • TURBO • 2WD • AUTOMATIC
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DAN KENNY
  • MEMBER
  • 1 POST
1. Heater is blowing cold air.
2. AC throwing cold air; could be compressor. Update/converted in 2016.
Mar 3, 2019 at 10:11 PM
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SCGRANTURISMO
  • ✓Experienced Mechanic
  • 4,897 POSTS
Hello,

This could be a problem with your heater core. I have included a few links for you down below. Please go through these guides and get back to us with what you find out.

https://www.2carpros.com/articles/how-a-car-heater-works
https://www.2carpros.com/articles/car-heater-not-working
https://www.2carpros.com/articles/replace-heater-core

Thanks,
Alex
2CarPros
Mar 4, 2019 at 11:32 AM
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