1996 GMC 4 wheel drive

Asked by DWB57 Nov 01, 2016 at 04:28 PM about the 1996 GMC Sierra 2500 2 Dr K2500 SL 4WD Extended Cab LB HD

Question type: Maintenance & Repair

My 1996 GMC k2500 won't shift into 4 wheel drive. When i push the 4hi
button the light just blinks and it won't engage the front tires. Checked the
voltage at the transfer case encoder switch and it had approx. 5 volts and
the ground had less than 2 ohms resistance so i am pretty sure that the 4
wheel drive switch and "brain" unit inside the truck are working ok. Checked
the voltage at the front diff actuator and found there was none. Does this
mean that the transfer case encoder motor needs to be replaced? Thanks
for any help on this.

1 Answer

DWB57 answered 7 years ago

I figured this out myself. Bought the transfer case switch thinking that was the problem but it wasn't , the old one was ok. What i should have done first was to check the fuse inside the cab on the drivers side( 25 amp fuse was blown). I put a new fuse in and tried to switch it into 4hi and the fuse immediately blew again. We traced the problem to the front diff actuator - it was shot. Bought a new one and installed, replaced the 25 amp fuse again and everything worked ok after that. Point is CHECK YOUR FUSES. Lesson learned.

Mark helpful

Your Answer:

Related Questions

  • 1996 GMC 4 wheel drive 1 Answer

    My 1996 GMC k2500 won't shift into 4 wheel drive. When i push the 4hi button the light just blinks and it won't engage the front tires. Checked the voltage at the transfer case encoder switch and it...

    1996 GMC Sierra 2500 2 Dr K2500 SL 4WD Extended Cab LB HD

    -

    Maintenance & Repair

  • My 4 wheel drive stopped working 1 Answer

    After struggling with the 4 wheel drive it stopped working. The last two winters the 4 wheel got cranky. If you shifted it in and out of gear it would engage, sometimes in low sometimes in high, now i...

    1990 GMC Sierra 2500

    -

    Maintenance & Repair

  • 1994 GMC K2500 Brake lights don't work!! 2 Answers

    I have a 1994 GMC K2500 that keeps blowing the STOP fuse when I press on the brake pedal. Even with a new brake light switch. Checked wiring- seems good-at least at the junctions and at the front a...

    1994 GMC Sierra 2500 2 Dr K2500 SLE 4WD Standard Cab LB

    -

    Maintenance & Repair

  • 1995 GMC Sierra 2500 cuts off 5 Answers

    My Sierra cut off on me to work (fuel issue). Changed the fuel filter first, nothing. Then changed the fuel pump (worked). Cranked fine, no issues. Immediately drove to gas station (approx 2 miles),...

    1995 GMC Sierra 2500 2 Dr C2500 SLT Extended Cab LB HD

    -

    Maintenance & Repair

  • 97 GMC Sierra 2500 Won't start 1 Answer

    I have a 97 GMC Sierra 2500 7.4L. It stalled on me one day driving home. Car won't turn over, but it cranks. I got it home and looked at it and then looked online for help. It was saying it was the I...

    GMC Sierra 2500

    -

    Maintenance & Repair

Own this car?

Share your experience with others.

1996 GMC Sierra 2500

Write a car review

Review another car

Shortcuts

Search GMC Sierra 2500 Questions

CarGurus Experts

  • #1
    Rowefast
    Reputation
    180
  • #2
    Gene Arnett
    Reputation
    170
  • #3
    mikeatpriestlake
    Reputation
    70
View All

Know more, shop wisely

Search

Related Models For Sale

Used GMC Sierra 1500
1,809 Great Deals out of 65,794 listings starting at $1,000
Used Ford F-150
6,025 Great Deals out of 129,797 listings starting at $900
Used Dodge RAM 2500
59 Great Deals out of 1,068 listings starting at $1,500
Used Ford F-250
221 listings starting at $7,495
Used Dodge RAM 1500
83 Great Deals out of 1,575 listings starting at $1,100
Used GMC Sierra 3500
65 listings starting at $13,992

Used Cars for Sale

2004 GMC Sierra 2500 For Sale
4 listings
2001 GMC Sierra 2500 For Sale
2 listings
2000 GMC Sierra 2500 For Sale
4 listings
1999 GMC Sierra 2500 For Sale
1 listing
1998 GMC Sierra 2500 For Sale
3 listings

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. Content will be removed if CarGurus becomes aware that it violates our policies.