Heater not working properly

Tiny
CHRISTOPHER IVAN ROEDER
  • MEMBER
  • 1996 HONDA ACCORD
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 202,123 MILES
Sometimes my heater works and sometimes it takes the whole trip to work before it even starts to warm up. I've adjusted the cable that is connected to the temperature knob so that it's on warm. Just don't know what else I can do. Thank you in advance.
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Monday, February 8th, 2021 AT 7:17 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

Is the engine warming up to operating temperature? Also, is the engine coolant clean and full? Either of those things can cause a heat issue as well as a partially clogged heater core.

First, pay attention to the engine temp and make sure it is at operating temperature. If it does, then the thermostat is good. If it doesn't warm up, replace the thermostat. Next, check the coolant level. If it is full, then I need you to try something. Start the engine and let it reach normal operating temperature while the heater is on high. When it is warm, feel both heater core hoses. Both should be hot. If that isn't the case, then the heater core will need flushed.

Please explain what you meant by you adjusted the cable for heat.

Here are a couple of links you may find helpful:

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

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

https://www.2carpros.com/articles/replace-thermostat

Let me know what you find or if you have other questions.

Take care and God Bless,

Joe
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Tuesday, February 9th, 2021 AT 5:17 PM
Tiny
CHRISTOPHER IVAN ROEDER
  • MEMBER
There's a cable that connects to the knob that controls the temperature sometimes on older cars it gets stuck on cool at least that's what I was told.
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Tuesday, February 9th, 2021 AT 7:45 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Okay, that operates the blend air door. Does it move when you make adjustments to the temperature? Are you sure it is on full heat and not moving?

Joe
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Wednesday, February 10th, 2021 AT 1:29 PM

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