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2015 Suburban LTZ AC Problem


mra1228

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Posted

Started up after sitting about 10 mins since last stop. Outside temp 60 degrees; humidity 100%. AC on "Auto" at start -- 72 degrees. Turned down to 70 degrees -- all of a sudden rapid air blowing out of dash vents warm on driver side, hot on pass side, no air in rear. Reduced fan speed but recirc and changing to floor vents would not work. Turned system off then on -- same result. Turned vehicle off then on -- same result. Drove 4 hours with AC off. Turned off vehicle overnight -- started next morning -- everything works!

 

Hooked up OBD -- no fault codes!

 

Is this a computer glich or faulty damper? Vehicle has 3,300 miles.

 

Thanks....

Posted

Had a similar problem with my 2015 Tahoe, next time your at the dealership advise them of the issue and tell them to check if the AC High Pressure Sensor is faulty. Mine had to be replaced

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