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No more 4x4

Discussion in 'Chevy Trucks' started by Sydenstricker Landscaping, Mar 22, 2008.

  1. Sydenstricker Landscaping

    Sydenstricker Landscaping PlowSite Veteran
    Messages: 3,882

    Okay so most of you know my truck, 00 2500 6.0, yada yada.......:) I have the push button 4x4 and it decided to quit working this morning. I pushed the button for 4x4, and all the lights on it went out and no 4 wheel. Now my service 4x4 light is on:gunsfiring: I think it may be the switch, but would appreciate other input as well. Thanks
     
  2. JD Dave

    JD Dave PlowSite Fanatic
    Messages: 11,045

    Last edited: Mar 22, 2008
  3. Sydenstricker Landscaping

    Sydenstricker Landscaping PlowSite Veteran
    Messages: 3,882

    Thanks Dave, I will try that. It is the cheapest place to start and I think I will give that a go.
     
  4. LHK2

    LHK2 Senior Member
    Messages: 205

    Check your fuses and relay first, being a push button, the actuator on the transfer case may have gone bad. If that is the problem, get ready to put up some cash, about $450 for the part.
     
  5. Sydenstricker Landscaping

    Sydenstricker Landscaping PlowSite Veteran
    Messages: 3,882

    I will check the fuses and relays first. I hope it isnt the tcase module:cry: Is there any way to scan the 4x4 system since the light is on? Thanks LHK2
     
  6. Up North

    Up North Senior Member
    Messages: 921

    just got done with having the same problem on my 1500 Chev. We swapped out the switch first, that wasn't it. Switched out the Encoder motor, that wasn't it. Turned out the ATC (automatic transfer case) module was bad, $421 part. Sucks, but it had to be fixed. This happened days after having to replace the shift lever as something bad went wrong with it, the tow/haul mode wouldn't work.

    Good luck with it.

    Buck
     
  7. creativedesigns

    creativedesigns PlowSite.com Addict
    Messages: 1,929

    Ouch! what a bummer! ...I had to replace my 4x4 actuator & that cost me $980 :eek:
    ...its like the sayin goes...: ya drive the big trucks, ya spend the big bucks! lol :jester:
     
  8. Sydenstricker Landscaping

    Sydenstricker Landscaping PlowSite Veteran
    Messages: 3,882

    Oh great, hopefully it will be the switch. My tow haul dont work either, but that happened about 3 weeks ago now. This is gonna suck since I dont have the 1k it would take to fix all that crap:dizzy: I guess I will just pull the fuse and relay so it doesnt randomly fly into 4x4. I think this may be my precursor to go to the dark side of solid front axles, lock out hubs and the lever on the floor
     
  9. JD Dave

    JD Dave PlowSite Fanatic
    Messages: 11,045

    Hit yourself on the head, you've had minimal problems with your truck. Try the fuses then the switch and then go from there. Take you steering column apart and solder the wires back on and they'll be good for another 80k. It's less then a 2 hour job. Stop procrastinating and you'll get this stuff fixed.:drinkup:
     
  10. calhoun

    calhoun Senior Member
    Messages: 165

    This happened to me last year. Was going to take it to the dealer the next day. When I started it the next day everything was fine! Still is fine a year later. Guess it was like rebooting a computor. Hope this happens to you.
     
  11. Sydenstricker Landscaping

    Sydenstricker Landscaping PlowSite Veteran
    Messages: 3,882

    Well I checked it out today, and the 4wd fuse was good, but the one 20amp for the ATC was blown. Put in a new one and all is good for now.
     
  12. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    If it blew the 20 amp "ATC" (auto T-case control) fuse in the under hood panel it's more than likely an encoder motor issue or a short in the harness that runs down to the encoder motor along the frame.

    The encoders will rot and corrode internally as they age causing an internal short in the motor. Motor is easy to change but rather pricey. If you end up purchasing a replacement motor use a genuine GM one. The aftermarket ones are cheaper but are not the best in quality...as usual.
     
  13. Sydenstricker Landscaping

    Sydenstricker Landscaping PlowSite Veteran
    Messages: 3,882

    That is the one it blew. I will check the harness tomorrow. Is that the one that runs 200-300 bucks?
     
  14. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    Unfortunately...that'd be the one.
     
  15. Sydenstricker Landscaping

    Sydenstricker Landscaping PlowSite Veteran
    Messages: 3,882

    Great:mad: Well that will be one item to have to sit and wait then till the snow goes away and I got more $$ in my pocket. Would my best bet be to pull the fuses so it doesnt randomly fly into 4x4, or will it? Thanks so much B&B:waving:
     
  16. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    I would pull the ATC fuse until you get it fixed. It wont go into 4WD all by iteslf but it will prevent you from engaging it and then it getting stuck engaged if the encoder dies while in 4 hi or low.
     
  17. Clapper&Company

    Clapper&Company PlowSite Veteran
    from NE OHIO
    Messages: 4,413

    You would be alot better with out 4wd then being stuck in 4WD LOL

    Tom sounds like a good summer Project
     
  18. Sydenstricker Landscaping

    Sydenstricker Landscaping PlowSite Veteran
    Messages: 3,882

    Yeah I would much rather just have 2wd than perma 4x4:mad: Just one more thing to add to the to-do list this summer, lol
     
  19. Clapper&Company

    Clapper&Company PlowSite Veteran
    from NE OHIO
    Messages: 4,413

    Yea i hear that
     
  20. Sydenstricker Landscaping

    Sydenstricker Landscaping PlowSite Veteran
    Messages: 3,882

    I was wondering, how much of a PITA would it be to convert my truck to floor shift 4x4?? Or would it be more cost effective to just fix what it needs? I am pretty handy at making and getting stuff to work, so I could try it. Let me know, thanks guys