A/C problem
03-10-15, 06:58 PM
#1
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A/C problem
What's up SC fans? Replaced outside air temperature sensor today. Correct outside temp now displayed. However a/c still only blows cold on max. When I adjust it to a warmer temp it blows hot. Check refrigerant level and all good. What's on the inside behind the 1'' square?
03-10-15, 11:11 PM
#2
The cabin temp. sensor is behind that 1" square.
I would start by looking at the heater control valve and seeing if the actuator's rod is improperly moving through its full range of motion when you adjust the temperature just a bit. Another possibility would be the blend door, but I have no idea how to troubleshoot that.
I would start by looking at the heater control valve and seeing if the actuator's rod is improperly moving through its full range of motion when you adjust the temperature just a bit. Another possibility would be the blend door, but I have no idea how to troubleshoot that.
03-12-15, 11:21 AM
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Questions?
Could the cabin air temperature sensor be causing the a/c to change from ice cold to hot when I try to adjust the climate control ****? I'll be checking the heater when I get home.
03-12-15, 04:57 PM
#4
There are diagnostic tests outlined in the factory service manual for the cabin temp. sensor, but be prepared for a major PITA getting it unplugged. I partially busted up the sensor's housing and nearly broke the dash panel, and the sensor ended up being fine...
Try harder, bud.
05-21-15, 04:59 AM
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Max cool/Max heat problem
Did you ever resolve what was wrong with your system?
I have the same problem and have searched the archives for heater control valve, various sensors, air mix servomotor assembly and the climate control unit itself. I am leaning toward it being a problem with the air mix damper position/servomotor assembly. Maybe someone can share their experience with this problem.
I have the same problem and have searched the archives for heater control valve, various sensors, air mix servomotor assembly and the climate control unit itself. I am leaning toward it being a problem with the air mix damper position/servomotor assembly. Maybe someone can share their experience with this problem.
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