1998-2002 Honda Accord Heater Control Valve Failure

Hey gang,

Here is a more detailed explanation of why exactly failed on my heater control valve.

There is a white plastic core inside the black plastic housing of the heater control valve assembly. The white plastic is directly attached to the valve part of the assembly.

The white plastic part has a house-shaped protrusion. The valve arm has a house shaped cutout that fits over the white protrusion, much like how a carriage bolt fits in a square shaped hole.

The problem with my heater valve assembly was that the white house-shaped protrusion has become overstressed and had sheered off. I thought it was a stupid idea to have plastic on that part of the valve, but then again plastic does not rust.

Consequently, I replaced the entire assembly and the heat was back up and running.

Category:

Autos & Vehicles

Tags:

• 1998
• 1999
• 2000
• 2001
• 2002
• Honda
• Accord
• Heater
• Control
• Valve
• Assembly
• Broken
• sheered
• protrusion
• white
• house

[fratermus]

Informative, thanks for posting.

[JIGGYNJIVE]

@fratermus Thanks for the comment. Glad to help!

[Zafiroo]

I have a question ...

If the Heater Control Valve is inoperable and is left open the engine tends to heat up? is that my Honda Civic 98 EX is heated and passed me from last week using the heater .. and it changed everything but .. Heater Control Valve

Thank you and good day

[JIGGYNJIVE]

@Zafiroo Thanks for commenting.

Are you asking "If the Heater Control Valve is inoperative or stuck, will that cause my engine to overheat?

The answer is no. No matter what position your heater control valve is in, the engine should not overheat. Even if the heater control valve is inoperative, it should not overheat your engine.

Overheating can be caused by thermostat, clogged radiator, bad water pump, coolant quantity.

If I didn't answer you question, please post back. Thank you!

[YOURSxTRULYx19]

My A/C blows cold but when I turn the heater on it never warms up. Do you know what may be the problem? Thanks

[dishpan22]

Great explanation! My '96 Accord temperature control knob somehow just unhooked from the control valve. I'll check the lever.

Thanks for posting the video.

[danial1007]

I'm using a 94 Honda Accord and I just bought a reverse camera to be fitted in the car. How do I wire them to the reverse lights? The camera has black and red wires to be fitted to the reverse lights. Thank you.

[JIGGYNJIVE]

@TrinDawg37 Great news and congrats on a job well done. I really appreciate your comments letting us know how it went.

Happy New Year!

[JIGGYNJIVE]

@TrinDawg37 Great news and congrats on a job well done. I really appreciate your comments letting us know how it went.

Happy New Year!

[TrinDawg37]

@JIGGYNJIVE,I checked the engine temp and it was indeed abnormal. Was running really cool. So bought a new T-Stat and that seemed to do the trick. Engine temp went back up to normal operation temp and heater is kicking out some serious heat. Nice and toasty in the car now!! Seeing as how the outside temp is in the low teens right about now, I am a VERY HAPPY CAMPER!! Thx for the words of wisdom!!