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  1. #1

    Default front tires dont spin in 4x4

    ok here is the deal.I have a 2002 s10 zr2 with on the fly 4x4. I push the 4 hi button and it clicks like it always has coming from the passenger side of thetruck behind the kick panel. i can also hear it engaging under neath the truck. this suggests to me that the transfer case is engaging. Also i tried putting it in 4 lo and it gears down properly yet still nothing coming from the front tires in either 4 lo or 4 hi any help would be appreciated
    Last edited by Crawdaddy; 11-04-2009 at 07:56 AM.

  2. #2

    Default

    1st thing I'd probably do would be to put it in 4H or 4L, jack up one front wheel, and rotate that wheel. When it's working properly, you won't be able to rotate the wheel freely. If you can rotate that wheel freely, look to see if the driveshaft is rotating with the wheel. That should be enough to tell you if the Center Axle Disconnect (CAD) is or isn't engaging or if the transfer case isn't locking in the front drivetrain.
    '98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
    '92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
    "My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World

  3. #3

    Default

    I dont know a whole lot about it but there is a shifter fork inside the t-case that goes out ive heard it is a pretty easy fix (never done it but know people that have) I have a friend that had the same kind of issues..

  4. #4
    Master Mechanic
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    Default

    i had a similar problem with a ford ranger (different truck, same problem) but it turns out my hubs were worn out and werent engaging properly..everything else worked..transfer case engaged, front drive shaft turned and the front axles were turning..just somthing to keep in mind
    -Dylan
    2004 Silverado 4x4
    4.8L
    1986 K5 Blazer
    8" Superlift w/39.5 super swampers
    1992 GMC Jimmy "Blue Bomber"
    4.3L Vortec

  5. #5

    Default

    Quote Originally Posted by redneckarmyMP View Post
    i had a similar problem with a ford ranger (different truck, same problem) but it turns out my hubs were worn out and werent engaging properly..everything else worked..transfer case engaged, front drive shaft turned and the front axles were turning..just somthing to keep in mind
    That year of trucks do not have hubs. The disconnect for the drivetrain is in the front axle itself, in the center chunk. There is a 2-wire connector going into the front chunk that operates the actuator. The Transfer case is always outputting some power to the front driveshaft, but the actuator is off. He should have one of the NVXXX cases. It simply shifts how much power is being sent ot each driveshaft depending on shifter configuration.

    I'd check the wires for that actuator. Check for broken connectors, worn out wires, blown fuses, etc.
    Christopher

    1991 Chevy Suburban 1/2 ton 2WD w/ chevy SBC 350-3/4 ton drivetrain upgrade w/4.10 gears 200K miles
    2005 Saturn ION-2 Stock 277K miles
    1982 Bronco, 1993 Bronco (sold), 1971 M35A2 Deuce and a Half



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