A/C problems

[ccyt]

My actuators on the ac system don’t shift from face to feet to defrost like the use to, I have recently change the actuators, and ac controll module but didn’t fix it. Any help would be very thankful


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[Dsmspickdad]

Vacuum leak?


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[ccyt]

Vacuum leak?


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I don’t think this system works that way, everything it’s electric


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[Dsmspickdad]

I don’t think this system works that way, everything it’s electric


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When does this happen? Going up a hill, idling, or deceleration?


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[ccyt]

When does this happen? Going up a hill, idling, or deceleration?


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They don’t work at all, air blows from front vents only, all the time, if I switch it to defrost or feet, it will stay on front vents. I wonder if it’s the ecm?


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[Dsmspickdad]

They don’t work at all, air blows from front vents only, all the time, if I switch it to defrost or feet, it will stay on front vents. I wonder if it’s the ecm?


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ECM is not the issue. Bad body module or HVAC module


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[ccyt]

ECM is not the issue. Bad body module or HVAC module


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I replaced the HVAC module and still the same well sort of, now the AC has a mind of his own, it just changing from feet to face to defrost and it’s awful, that body module, if I replace it do I have to reprogram it or is it just plug and play


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[Dsmspickdad]

I replaced the HVAC module and still the same well sort of, now the AC has a mind of his own, it just changing from feet to face to defrost and it’s awful, that body module, if I replace it do I have to reprogram it or is it just plug and play


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Plug and play.


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[Bluwtr]

Have you checked the door actuators? If they fail the system will do crazy stuff. Did you hear a "grinding" or "binding" sound before they quit all-together? If so, it's most likey the actuator/s. Not very expensive and fairly easy to replace.

 

[ccyt]

Have you checked the door actuators? If they fail the system will do crazy stuff. Did you hear a "grinding" or "binding" sound before they quit all-together? If so, it's most likey the actuator/s. Not very expensive and fairly easy to replace.

Yes I have replaced two of them one controls the air duct and the other controls the temperature and still the same but I his weekend am going to a yunk yard and get the body module and hopefully that will do


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[PatrickDayne]

Did you replace the actuator above the gas pedal, and did you carefully align the white plastic gear up correctly? Look at the actuator above the gas pedal while turning the knob from vent to defrost and see if the actuator is moving. If not, and if its new, sounds like an electrical/fuse issue. If it moves it sounds like the gear isnt aligned.