Question about 1992 GMC Sierra K1500

3 Answers

1990 GMC Sierra 4x4 1500

Front axle of 4x4 will not engage into 4 wheel drive when shifted into 4-wheel-electrical connections are live & working. iversonrc

Posted by on

  • 7 more comments 
  • iversonrc Sep 22, 2008

    Thanks for the insight--we'll give it a try!! Regards, cowboy40

  • hornellguy Nov 20, 2008

    1992 GMC Sierra K1500 front drive won't engage, wiring looks good. and have replaced the two pin actuator. Only getting about 6 volts to the new actuator. Possible ground problem.. maybe? Any ideas?

  • Anonymous Dec 18, 2008

    My 92 sierra wont engage into 4 wheel drive. The transfer case is good.

  • Anonymous Mar 13, 2014

    4x4 manual shift will not engage 4wd

  • Anonymous Mar 13, 2014

    2004 gmc sierra 4 wheel drive will not engage just flashes on dash and says service 4 wheel drive

  • Anonymous Mar 13, 2014

    front drivers wheel when you turn it acts as if the 4x4 is engaged but the 4x4 is not enf

  • Anonymous Mar 16, 2014

    shifting ******* a 1990 gmc 1500 what could it be

  • Anonymous Mar 18, 2014

    2010 gmc sierra comes out of 4 wheel drive late and knock

  • Anonymous Mar 20, 2014

    won t go into 4 wheel drive



3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 507 Answers

The connections near the front axle that activate the motor to engage the system aren't melted? That's a comon problem for that body style. If there good, sounds like it could be that motor itself. To figure out if it's you motor or transfercase, jack up the rear end, have a friend inside shift into 4 wheel drive, or try to, and put it in gear and apply some gas. If the front driveshaft is turning then it's something with the front end. If not, farther back in the system.

Posted on Sep 22, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

All you have to do is put the truck in reverse and then drive back in forth a few times untill it drops in theyre just alittle hard to get in

Posted on Apr 29, 2011

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer


Posted on Jan 25, 2011

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

1990 GMC suburban actuator and fuse location. There is not one on front differential and no place for fuse in fuse block. 4 wheel will not engage. No owners manual

The actuator will not be on the front differential or drive line, it will be on the transfer case, which is mounted behind the transmission. Follow the front drive shaft back from the front differential, and the component at the rear of the driveshaft is the transfer case. That is where four wheel drive is engaged/disengaged.
I'm not familiar with your vehicle, but if you have a separate lever to engage 4wd, there will not be a fuse for the actuator - it is a manual system. If the 4wd is selected electrically, check that all wiring and connectors on the transfer case are in good condition.

Sep 25, 2016 | 1990 GMC Suburban

1 Answer

2000 Gmc sierra sle 1500 on the floor 4x4, 4x4 engages but nothing to the front wheels, the drive shaft spins, but still nothing, any suggestions?

Sounds like you need a front axle actuator. This actuator bolts to the side of the front differential housing. It is electrically engaged. You can purchase them online starting at about $40

Jun 03, 2012 | 2000 GMC Sierra

1 Answer

How to properly engage and dis-engage 4 wheel drive 0n 1996 gmc sierra

  • Shifting from 2HI to 4HI Press and release the 4HI button. This can be done at any speed, and the front axle will lock automatically.

  • Shifting from 4HI to 2HI Press and release the 2HI button. This can be done at any speed, and the front axle will unlock automatically.

  • To shift from 2HI or 4HI to 4LO, the vehicle must be stopped or moving less than 3 mph with the transmission in NEUTRAL

  • Hope this helps.

Oct 29, 2011 | 1996 GMC Sierra

2 Answers

4 X 4 does not engage front wheel drive when I move the 4x4 Shifter. Transfer case does shift into low range/high range ok, just no front wheel drive?

older GM's have an electric motor on the transfer case to engage the front wheels. Since it is under the truck they do corrode. Look there first. Easy to fix if so.

May 02, 2011 | 1992 GMC Suburban

1 Answer

Keep blowin 4 wheel drive fuse in 98 gmc

More than likely ..electric motor on transfer case.....(this is what activates your front drive shaft in conjunction with another actuator to engage the front axle for 4x4 operation)....... malfunction

Feb 20, 2010 | 1998 GMC Sierra

3 Answers

4 wheel drive will not engage on my 1989 gmc sierra 2500?

actually that first soultion is wrong it is correct on smaller pickups but on the full size pick ups they use a differnet sytem
there a electric actuator on front axle
there be two elctrical plugs on front axle u want the bigger of the two other one is just to turn the 4 wheel drive light on
un plug actuator then remove actuator after it removed plug it back in but leave it out of axle turn key on and shift down to 4 wheel drive the actuator should move out if it dont that your problem if i does move this isnt your problem it either the tranfer case or in front axle

Jan 07, 2010 | 1989 GMC Sierra

1 Answer

Four wheel drive not working

Check front axle actuator see if it came unpluged

Jan 18, 2009 | 1999 GMC Sierra

Not finding what you are looking for?
1992 GMC Sierra K1500 Logo

1,735 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides