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  1. M

    99 Tahoe 4x4 help, won't come out of 4hi

    Ok finally had some time to check things out again. ITs FIXED!!! turns out my buddy or I swapped the 6 wire connection going to tcase motor with the one coming from truck. We started checking wiring and we noticed at that connection the wires changed colors which we thought was kinda weird...
  2. M

    99 Tahoe 4x4 help, won't come out of 4hi

    I don't see any pinched wires going to have to througly check again, the scanner was a snap on connected to odb port not sure model number though. Manual shifting tcase buttons still say 4hi it doesn't change when shifting manually no. I have 3 plugs that look like speed sensor's going to tcase...
  3. M

    99 Tahoe 4x4 help, won't come out of 4hi

    I pulled fuses and battery cable when swapping tccm, I didn't have rear speed sensor hooked up at all during test drive. From researching online I've found the 246 only has 3 shift detents motor creates the rest? I have motor off currently and no it still doesnt line up with t case. Just kinda...
  4. M

    99 Tahoe 4x4 help, won't come out of 4hi

    Okay so bought a new TCCM still same thing motor turns and front actuator extends then retracts, took that back then bought a new Front actuator same deal extends then retracts. I am at a loss. I have tried everything on the 4x4 system, TCCM, front end actuator motor buttons. Now what? I...
  5. M

    99 Tahoe 4x4 help, won't come out of 4hi

    I've tried 2 different actuators now, i'm thinking the controller then. Do you know where its located on the 99's?
  6. M

    99 Tahoe 4x4 help, won't come out of 4hi

    I don't see an ATC fuse under hood, ---------- Post added at 12:28 PM ---------- Previous post was at 11:38 AM ---------- With tcase motor off switching to 2hi you can hear front acuator moving in and out shouldn't it move and stay with motor off?
  7. M

    99 Tahoe 4x4 help, won't come out of 4hi

    okay ill give that shot this weekend and update post, working crazy night shift hours is not fun .
  8. M

    Noob from NM

    Rio Rancho
  9. M

    99 Tahoe 4x4 help, won't come out of 4hi

    No it stays extended even when manually shifting it. ---------- Post added at 11:49 PM ---------- Previous post was at 11:48 PM ---------- Buddy of mine is thinking pinched wire somewhere is there any way to test wires using multimeter.
  10. M

    99 Tahoe 4x4 help, won't come out of 4hi

    I'll give it a shot, your talking about manually shifting it correct? My T case only has the 3 shift positions available, 1 thing I did also notice is when I pulled front end actuator out of JY Tahoe is was in the "in" position when I pulled mine out it was in the "out" position as soon as I...
  11. M

    99 Tahoe 4x4 help, won't come out of 4hi

    Hey all, long read but please help me. So recently bought a 99 Tahoe that needed trans work. Had no 2nd or 4th gear pulled trans and buddy rebuilt it ended up being bad band. 4x4 worked fine before pulling trans and getting it rebuilt. Put trans back in went and test drove it trans shifts...
  12. M

    Noob from NM

    Hey all, joined for some tech help on 99 Tahoe. Member of many forums same user name.

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