Heater does not work

Tiny
HURLEY14624
  • MEMBER
  • 1999 TOYOTA SOLARA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 145,000 MILES
Ac works but heater does not in a 1999 toyota solara
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Friday, December 10th, 2010 AT 1:05 AM

5 Replies

Tiny
WRENCHTECH
  • EXPERT
With the engine at full operating temp, locate the 2 heater hoses where they go into the firewall and feel them to see if they are both hot to the touch.
If you find that they are both too hot to hold, then the heat in that vehicle is controlled by a blend door that regulates heated air flow. It is operated by an electric motor/actuator. The problem can be that the actuator is stripped or inoperative or the door itself could be damaged. This is what needs to be determined by examining the actuator and see if it is responding to heat change commands or not.
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Friday, December 10th, 2010 AT 1:16 AM
Tiny
HURLEY14624
  • MEMBER
Where is the heater blend door located in the toyota solara
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Saturday, December 11th, 2010 AT 12:23 AM
Tiny
KEN
  • ADMIN
Hey HURLEY14624,

Here is the location of the blend door actuator (Diagrams Below). The actuator is above the gas pedal and can be seen when looking in that location without removing a number of trim pieces that is required to replace. It is not behind the glove box on the 99 Solara.

Here is a guide that will walk you through the procedure on how to fix it.

https://www.2carpros.com/articles/replace-blend-door-motor

Check out the diagrams (Below)

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Monday, January 2nd, 2017 AT 5:29 PM
Tiny
LONNY HADLEY
  • MEMBER
Replaced actuator still not working, with actuator off I moved the door manually and it changed from heat to air conditioning,
Couldn t find any bad fusses
1999 Toyota solara
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Thursday, November 8th, 2018 AT 10:18 AM
Tiny
KEN
  • ADMIN
It sounds like the controller is bad. To be sure here are the AC wiring diagrams so you can see how the system works and a guide to help you test the wiring:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please run this test and get back to us.

Cheers, Ken
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Saturday, November 10th, 2018 AT 11:29 AM

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