|
Re: HVAC control problems
Welcome to AF.
Do you have the manual dual zone or automatic-digital climate control system?
Regardless to start the HVAC system uses engine vacuum to help control the actuators that control airflow and which vents to use. So check the plastic accessory vacuum line that comes off the upper intake manifold or supercharger depending on which engine you have. It routes along the firewall to the area under the main engine compartment fuse box and battery or inner passenger side fender. Check the coupling at the inner fender. From there it goes into the main wiring harness right in to the cabin to under the dash in to a vacuum cannister.
If the above is good then the climate control head unit may need replacement.
|