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05 yukon auto climate control problem

rick2005

By rick2005
in Ask A GM Technician

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rick2005 New Member

rick2005

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I HAVE A 2005 YUKON WITH LESS THAN 12,000 MILES 9 MONTHS OLD. I HAVE AN ITERMITTENT REAR FAN PROBLEM. THE REAR A/C CYCLES FROM FULL SPEED TO OFF IN 5 TO 10 SEC INTERVELS. IT ONLY HAPPENS WHEN IT IS EXTERMELY HOT. I LIVE IN WEST TEXAS SO 100 IS NORMAL SUMMER TEMP. THIS ONLY OCCURS DURING THE FIRST 10 MINS AFTER STARTING FROM COLD. ALSO THE FRONT HEATER DOES THE SAME IN EXTREME COLD. DEALER SAID THEY COULD NOT DUPLICATE PROBLEM. IT HAS BEEN AT DEALER EVERY 3 MONTHS FOR REPAIRS OTHER THAN A/C AND THE CONDITION IS ALWAYS NOTED TO BE LOOKED AT. USUALLY THE A/C WORKS FINE FOR ABOUT 2 TO 3 WEEKS AFTER I GET IT BACK FROM DEALER. THEN IT GETS SOME NEW TWIST TO THE PROBLEM. LAST TIME YOU COULDN'T CONTROL THE REAR AIR IN ANY POSITION, MANUAL, AUTO, FAN SPEED NOTHING. YET THE CLAIM THERE IS NOTHING WRONG WITH IT.

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