You have 2 zone temperature control control. The heater control valve has failed and is open allowing the passenger side heater core to stay hot.
It is a very common problem and expensive to repair. It tends to be an intermittent problem and sometimes will work properly.
the compressor is located in the lower front drivers side wheelwell. This is also where you recharge your A/C.
The port is on the compressor under the engine on the drivers side.
Do you have dual control thermostats?
Firing Orders; (4.6L - 5.4L)************* Firewall ************(Passenger Side) 4 * 8 (Drivers Side)(Passenger Side) 3 * 7 (Drivers Side)(Passenger Side) 2 * 6 (Drivers Side)(Passenger Side) 1 * 5 (Drivers Side)************* Radiator ************
Firing Orders; (4.6L - 5.4L)************* Firewall ************(Passenger Side) 4 * 8 (Drivers Side)(Passenger Side) 3 * 7 (Drivers Side)(Passenger Side) 2 * 6 (Drivers Side)(Passenger Side) 1 * 5 (Drivers Side)************* Radiator ************
Check your settings...the passenger and drive have TWO different temperature settings.
The actuator that controls the diverter door needs to be replaced.
the compressor is on the left side of the engine compartment (drivers side) front under air filter box
its located on the bottom of the compressor drivers side of the motor behind plastic panel which is behind wheel
It's on the Passenger side. #1 is in front on the drivers side.
Firing Orders; (4.6L - 5.4L) = Firing Order: 1-3-7-2-6-5-4-8 Distributorless ignition system = ************* Firewall ************ (Passenger Side) 4 * 8 (Drivers Side) (Passenger Side) 3 * 7 (Drivers Side) (Passenger Side) 2 * 6 (Drivers Side) (Passenger Side) 1 * 5 (Drivers Side) ************* Radiator ************
Firing Orders; (4.6L - 5.4L) = Firing Order: 1-3-7-2-6-5-4-8 Distributorless ignition system = ************* Firewall ************ (Passenger Side) 4 * 8 (Drivers Side) (Passenger Side) 3 * 7 (Drivers Side) (Passenger Side) 2 * 6 (Drivers Side) (Passenger Side) 1 * 5 (Drivers Side) ************* Radiator ************