» » »

Chevrolet Q&A

Ask Your Question

2004 Chevrolet Tahoe Question: air blows,a/c & heat, why doesn't the mode work, only blows feet and defroster

 

Question

charlie68, Purcellville, VA, June 12, 2012, 13:04
 Rookie

Always blows defroster and feet no matter what the setting

2 Answers
Flag This
  • Answer #1

    Greg's Orange Auto (13671 Answers) , Orange, CA - (714) 361-9386
    globalhelper June 12, 2012, 13:07
     Master

    POSS BLEND DOOR STUCK OR BROKEN SEEK DIAG AND EST

    Reply
    Flag This
  • Answer #2

    Miles Auto Services (884 Answers) , Richmond, VA - (804) 885-4176
    milesauto June 12, 2012, 14:30
    Profile_thumbnail
     Master

    Mode door or motor that changes the door position may have failed. This problem can be diagnosed with a Tech 2 GM scanner. A few other scanners may be able to do it also but the higher end scanners are needed.

    Flag This
  • Reply

    PARTS GUY, June 12, 2012, 16:21
    Profile_thumbnail
     Master

    Not just a OBD2 code reader.

    Reply
    Flag This