A/C compressor runs, but A/C goes on and off

Good afternoon,

Yes, it sounds like a blend door motor.

I attached the procedure and some pictures for you to view.

Roy

Removal and Installation

NOTE: The LH temperature blend door actuator can be accessed from below the LH side of the instrument panel to the right of the accelerator pedal.

1. Disconnect the LH temperature blend door actuator.

2. Remove the 2 LH temperature blend door actuator screws.

3. Remove the LH temperature blend door actuator.

4. To install, reverse the removal procedure.

5. NOTE: The purpose of the module actuator position calibration is to allow the HVAC module to reinitialize and calibrate the actuator stop points. To carry out calibration, carry out the following steps.

Remove the Smart Junction Box (SJB) fuse 15 for at least one minute. See: Power and Ground Distribution > Electrical > Power Distribution Diagrams

6. NOTE: When the ignition switch is switched to the ON position, the HVAC module will initialize and calibrate the actuators. Calibration of the actuators will take approximately 30 seconds.

Reinstall SJB fuse 15. Turn the ignition switch to the ON position and wait 30 seconds before verifying correct DEFROST/PANEL/FLOOR operation.

replaced the blend door. the motor is moving from open to close with out touching the temperature knob.

Did you follow the calibration procedure in the flow chart?

roy

yes. did we did the calibration procedure.

Okay, if the calibration did not work, it only leaves the control head.

Roy

Removal and Installation

Vehicles equipped with navigation system

1. Remove the Front Display Interface Module (FDIM). For additional information, refer to Accessories and Optional Equipment.

2. Remove the 2 HVAC module screws.

3. Disconnect the 2 HVAC module electrical connectors and remove the HVAC module.

Vehicles without navigation system

4. Remove the center instrument panel finish panel. For additional information, refer to Instrument Cluster / Carrier &/or Interior Moulding / Trim.

5. Remove the 4 HVAC module screws and remove the HVAC module.

All vehicles

6. To install, reverse the removal procedure.