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No heat?

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Old Nov 5, 2021 | 08:03 AM
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Default No heat?
Even when the engine is warm my 1999 heat is blowing only cold air. Any advice or insights?
Last edited by Annehunt; Nov 5, 2021 at 08:03 AM. Reason: Clarity
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Old Nov 5, 2021 | 08:43 AM
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Is the coolant level in the radiator correct?
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Old Nov 5, 2021 | 02:57 PM
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Originally Posted by Annehunt
Even when the engine is warm my 1999 heat is blowing only cold air. Any advice or insights?
Air mix servo could have failed or become disconnected
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Old Nov 7, 2021 | 06:07 PM
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99% of the time that means the heater core has failed
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Old Nov 8, 2021 | 05:30 PM
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Unless if it was leaking a heater core would be pretty low on my list of possibilities.

Here's a long "no heat" thread https://www.clublexus.com/forums/rx-...-cold-air.html

Post #50 in that thread shows the mode and mix servos and linkage
https://www.clublexus.com/forums/rx-...ml#post5852597
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