Heating/cooling not working properly

Hi,

If the system works on and off and the coolant is full, it's likely an issue with the blend air door. However, when the engine is cold, you may want to confirm the radiator is full.

Next, if the system hasn't been opened, there shouldn't be air in it. Has anything been done recently to the cooling system?

If not, have you ever noticed a clicking sound from under the dash? If so, that is likely related to the blend air door. The actuator has a small plastic gear in it that is known to fail.

Under the dash on the passenger side, locate the actuator. See if anything is loose at the connection or if there is any evident damage to the wiring or connector pins.

Let me know.

Joe

See pic below.

Hi,

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

Take care,

Joe