The heat is only coming out on the passenger side of my car.

look under dash to make sure vent door is working proper

check the air vent door,u need to remove glove box & check the linkage,it might come off or broken off

the 1 n t center all air comes n on the passenger side so start thier

The actuator door that is behind the dash that closes off the heater core from shooting hot air thru the vents might be your problem. When you turn on your ac the actuator shuts the door to prevent the air from flowing thru the heater core into the cabin, this may be your problem if everything else is working properly. Let us know.

check out my tips..it will explain in details

Hello: You have a failed temperature control actuator for the passenger air mix door. Remove the glove box and the close out panel under the dash on the passenger side. You will see two silver rods going from the actuators (mounted on the top and bottom of the heater/a/c programmer) Turn key on (engine off) Turn the a/c heater control on. Go from 60 to 90 or 90 to 60 and watch the rods the one that doesn't move is the failed one. The actuator is held in place by two 7mm screws and one electrical connector. When installing the new actuator have the temp set at 60 when you hook up the linkage. The passenger side set at full cold.

your blend door on your passenger side is most likely stuck in the cold position. Chances are you cable is broken. Good luck.

The problem is in the ducting, possibly disconnected on the passenger side or a dampner is stuck.

Most likely the blend door motor is defective.