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Produces heat to the cabin intermittently

Tiny
CROCQUE
  • MEMBER
  • 1995 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 101,000 MILES
My car warms up fine and the temp gauge seems fine but produces heat to the cabin intermittently. Coolant level is fine with no apparent leaks. It seems like when I stop in traffic the heat turns colder and then gets warmer as I get moving again, but not always. Any suggestions?
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Monday, January 11th, 2010 AT 3:21 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

You could have an issue with coolant circulation thru the heater core.
It is possible to have clog in the heater core or the lines. Which can make it difficult for the coolant to pass through the heater core. Which will lead to poor heater performance.

https://www.2carpros.com/articles/car-heater-not-working

First try flushing the heater core. This can be done simply by removing both of the heater hoses and running water thru the core. This can clean out any restriction or buildup that might be inside the.

https://www.2carpros.com/articles/replace-heater-hoses

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.
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Wednesday, October 27th, 2021 AT 11:03 AM

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