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  1. #1

    Default push button 4x4 doesn't work

    2001 chevy 1500HD
    4x4 worked fined when I bought it, now it doesn't work. I press the 4hi button, it blinks a few times and then stays solid, just like normal. Same with 4lo, but when I press that there is a whirring noise. Still doesn't engage. If I press 4auto, after a while the service 4x4 light comes on. Is this an acuator problem? How can I tell?

  2. #2


    gonna need to have it looked at by someone with a tech II so it will show where the problem is. its one of those things the basic scanner wont show. I had to have the actuator replaced on mine. I try to stay away from the stealership as much as possible but sometimes its necessary.
    2004 Silverado 2500 Crew Cab 4x4, AMSOIL EA air filter, Granatelli MAF sensor, Throttle body spacer, Magnaflow exhaust (true dual to 2 in 1 out muffler), 6" ProComp lift (add a leaf and 5" superlift rear block), Bilstein shocks, 35's (Cooper Disoverer ST) and 4.10 gears, Rhino Liner, EGRUSA fender Flares and widow visors, extended stainless steel brake lines, firestone airbags w/onboard air compressor, Pioneer Avic X940BT navigation, Accel backup camera.
    1960 Land Rover Series II 88
    2001 Pontiac Sunfire
    2013 Toyota Avalon Limited (Wife's Car)
    NRA Life Member

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