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    Trying to identify a key-on switched circuit, dashboard fuse box, '13 3500HD LML

    hey folks - as the post title states, Im looking to find a key-on switched circuit for a UHF/VHF radio I have a mini-fuse ATO (add a circuit), and I was popping it in/out of various circuits (the radio wants a 10A, so all good) 1 rear seats (not sure what this circuit actually does, but it has...
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    LML Ignition column problem - key very hard to turn

    Ignition column problem - key very hard to turn (not ignition cylinder) 2013 GMC 3500HD Diesel 4WD CC LB DRW The ignition key is very hard to turn to the ON and START positions This just happened (not gradually, but a singular event)...I did have an idler pulley fail, so I had to drive it...
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    Question: Adjust the position/height of GM tailgate?

    I added a BAK Industries RevolverX2 tonneau cover to my pickup (2013 Sierra LML CC/LB Dually); it is supposed to allow the use of the tailgate without opening up the cover, but this is not the case with my pickup. It appears the tailgate is a little high, when compared to the bed sides - is...
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    Help: Towing Mirror LED repair

    Hi all - I've got a '13 SLT CC Dually, with LED lights in a "chevron" formation on the outboard side of my towing mirrors. The Drivers' side LED's just went out - is there a way to replace them, rather than go with a whole new mirror assembly? The mirrors move electronically...how can I tell...
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    2013 Gmc 3500 dually

    Pullshard submitted a new Showcase Item: 2013 Gmc 3500 dually Read more about this showcase item here...
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    New to Diesels

    Hi folks - New to board, and diesels in general. I just picked up a '13 GMC SLT 3500HD...Im loving the vehicle! I had a local diesel guru check it out - the mechanic is very knowledgeable, and checked all the common and not so common ODB accessible diagnostic values, both running and...