Thread: Dual zone climate control

Ed has them for like 18-20 buxs on his website....Morad Parts Company - 3800 Motors, Transaxles, & Stock Parts

take a quarter you will see a white knob white a slot turn it one way it will get hotter other way colder. If it does not get colder one way or the other start checking your freon.

Originally Posted by CT Tech

I've got a 2000 GTP with dual zone, when you turn on the A/C, the passenger side is ice cold and the drivers side is warm, not hot like the heat is on, but nowhere near as cold as the passenger's side. Anybody had this before? Looking for a common cause and repair. I would think it's either got to be the control unit itself or a air temperature blend door sticky. Any input woulfd be a great help.

I had the exact same thing, and could have sworn that it was a blend door issue. It turned out to be low refrigerant, and I would bet that you have the same issue. I had put the proper amount of refrigerant into the system but ended up adding almost another entire can to get all of the vents blowing <40ºF.

Originally Posted by JoshMcMadMac

I had the exact same thing, and could have sworn that it was a blend door issue. It turned out to be low refrigerant, and I would bet that you have the same issue. I had put the proper amount of refrigerant into the system but ended up adding almost another entire can to get all of the vents blowing <40ºF.

If you are having to add freon there is something wrong with your ac system and you have a leak some where.

Checked the system pressures on my guages and added half pound of freon to system. Passenger side vents at 40 degrees and driver's at 75 degrees. Pulled off actuator and worked door by hand, actuator OK and door moves freely full range. Determine foam seal on temp door deteriorated allowing hot air from heater core into driver's side vents. Proper repair would be to remove heater box, disassemble and reseal temperature door. Customer opted for cheaper fix pinch off heater hose to block flow to heater core until the end of summer.