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Question: FWD not working and heater/AC blower motor problem.

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keaton, 3.5L 5 Cylinder, Batavia, NY, July 22, 2012, 12:50
 Rookie

I have a 06 Colorado Z71 FWD. It has 100K miles. Since the truck had 80K miles the FWD has not worked. The FWD dash buttons just flash. I changed the front diff. actuator and nothing improved. Button lights will flash in all positions but nothing happens. Could this be an Encoder sensor problem or other?
My heater/AC blower motor will work all the time in high speed. All other speeds will not work sometimes. Have you an idea what’s wrong with this?

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  • Answer #1

    milesauto from Miles Auto Service Inc., July 23, 2012, 06:16
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     Master

    Good chance encoder motor has failed. Best take it to shop that has scanner that can run self diagnostics on
    4X4 system. That system is not to hard to diag. Better than thowing parts at it. The A/c system is likey a blower module problem...but there again best be tested before thowing that part at it either.

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    keaton, July 23, 2012, 15:09
     Rookie

    Thank you. This is helpful. Where is the encoder motor located?
    Where is the Blower module located?

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