Heater performing poor

Tiny
DANIEL BATTS
  • MEMBER
  • 1994 CHEVROLET CAPRICE
  • 130,000 MILES
Car takes long time to warm up, heater does not work until driven over twenty miles then it works poorly. Just replaced the thermostat and fluid. Help please.
Friday, December 8th, 2017 AT 12:22 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

Does the engine temperature gauge move to the normal range like the thermostat is working? It sounds like you may have a heater core that is plugged up. With the engine warm grasp both heater hoses and see if they are hot.

Here is a guide that can help us as well:

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

Please run this test and get back to us.

Cheers, Ken
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Sunday, December 10th, 2017 AT 11:03 AM

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