4wheeldrive stoped workin all of the sudden

Asked by Feb 16, 2016 at 05:52 AM about the 1996 GMC Suburban

Question type: Maintenance & Repair

Long story short bought sub used 250,000 plus miles when got it home I tested the 4wd
worked perfectly. But i let it sit in the yard for about 3 months till i could replace the spider
injector, plugs and wires. Got it done last week and I wanted to play around so I press 4L
nothing, no light flash no sound of it locking in. Same happen with 4H, but the 2H button
is fine light works and everything. Idk like could I have nocked a plug loose Cause I had to
disconnect a lot to do the spider injector. Or maybe a fuse blown, or sensor went bad, or
4H 4L switch is bad, or could it be from the battery dying while it sat and it mess with the
computer???

1 Answer

98,385

The transfer case shift motors fail a lot, you might try tapping on the motor assembly while someone try's to put it in 4WD HI and see if it switches, if it does then you need a new motor assembly, if it doesn't then you will have to start to run diagnostics on the electronics, that can get complicated, so if you have to go there get a shop manual with good wiring diagrams.

Your Answer

GMC Suburban Experts

  • #1
    LouB
    Reputation
    1,370
  • #2
    Larry Thibert
    Reputation
    220
  • #3
    ShadetreeMech
    Reputation
    210
View All

Related Models For Sale

Used Chevrolet Suburban
285 Great Deals out of 20,238 listings starting at $1,195
Used GMC Yukon
409 Great Deals out of 20,824 listings starting at $1,495
Used Chevrolet Tahoe
626 Great Deals out of 36,240 listings starting at $1,800
Used GMC Sierra 1500
754 Great Deals out of 68,023 listings starting at $1,699
Used Ford Expedition
396 Great Deals out of 21,930 listings starting at $1,500
Used Ford F-150
2,234 Great Deals out of 181,370 listings starting at $1,500
Used Ford Explorer
814 Great Deals out of 62,844 listings starting at $1,495

Used Cars For Sale

1999 GMC Suburban For Sale
57 listings starting at $2,590
1996 GMC Suburban For Sale
18 listings starting at $3,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.