Question about 1998 GMC Jimmy

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My truck is stuck in 4LO and it won't come out of 4LO.

I have a 1998 gmc jimmy 4wd, 4 dr. and it will not disengage out of 4wd it is stuck in 4LO my button inside the vehicle does not work so we are trying to remove the silinoid and little motor off the side of the transfer case. Any suggestions??? Please help! I have a 2000 chevy blazer 4x4, 4 door with electronic tranfercase. I ended up getting stuck and put it in 4-low trying to get out and now it wont come out of 4-low.

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  • its420_us May 11, 2010

    Did you try putting the vehicle in neutral?

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  • 35 Answers

Likely either a shifter position sensor, transmission position sensor, or a differential position sensor. Had same issue w/ my Montero and it ended up being one of the 5 sensors on the transfer case. It was pretty tough to get to, so replaced all 5. That fixed it.

Posted on Jul 16, 2017

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SOURCE: My truck is stuck in 4LO and the button in the truck dont work.

If its a push button 4x4 take it to the shop its a VERY COMMON Problem dealing with the electric.Once you pay the $400 to get it fixed get rid of the truck and settle for a Jimmy/Blazer/Bravada with a floor shift 4x4..GM had problems with the push button 4x4.DONT DRIVE YOUR TRUCK IN THE MEANTIME.YOU WILL BLOW YOUR TRANSFER CASE RIGHT OUT OF IT!

Posted on May 29, 2009

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2 Answers

My 2005 Yukon will not switch out of 4wd low.


I'm assuming you have operated your 4WD before, and you know the tranny has to be shifted into neutral to engage and disengage 4LO (I'd try that first). Other than that they are bad for the 4wd Switches failing, (but usually one or more lights are flashing) and if its locked in 4LO you probably have a TCCM (Transfer case control module) problem. For the record there is no need to ever use 4LO, unless you are extremely stuck in the bush somewhere, there is no advantage on the street.

Feb 23, 2011 | 2005 GMC Yukon

1 Answer

4x4 push button is not working about how much does


This is something you can do yourself if you have ever worked on a vehicle before. The part you need is called a front drive actuator valve. It costs about $ 50.00, GM part # 15165891.
Here is some more infor about it:

Main 4wd Components:
TCCM
- Transfer Case Control Module - Located behind the glove box. This is the electronic 'brains' behind the shifting.
Switch - The push button switch in the dash - driver input/indicator.
Encoder Motor - Located on the transfer case - This is what actually shifts the transfer case, and tells the TCCM what position it is in.
Vacuum Switch - Also located on the transfer case - This is what sends vacuum to the vacuum actuator (see below) when the transfer care is in 4HI or 4LO.
Vacuum Actuator - Located under the battery tray - This is what engages or disengages the front driveshaft.
Front Axle Switch - Located on the front axle - This is what tells the TCCM when the front axle is engaged.

If you want to try and replace it yourself, please let me know how it goes.

Feb 11, 2010 | 1998 GMC Jimmy

2 Answers

I have a 1998 GMC jimmy the motor on the transfer case for putting it in to 4x4 needs to be replaced is there anything I need to know to replace it


yes
the gears inside the motor strip out because the
clutch pack inside the transfer case are hanging up
do to wear
so be carefull
you may damage the gears in the new motor
the way you can tell is to take apart the old transfer case motor and look and see if the 4 small gears are
chewed up

Jan 10, 2010 | 1998 GMC Jimmy

3 Answers

4WD LO will not disengage what can cause this.


@ 2000 gmc: Exactly right.

asker: Also, it helps if you're rolling at about 2 mph with the steering wheels straight.
You cannot shift into 4LO with the wheels turned or when in a drive
gear. Also, it may be that you need the electric shift unit serviced.
It is not recommended to drive on dry pavement while in 4LO.

Jan 07, 2010 | 1997 Chevrolet Tahoe

3 Answers

HOW DO I PUT A 1998 GMC JIMMY IN 4 WHEEL DRIVE?, DO I HAVE BE IN "PARK" OR CAN I CHANGE IT INTO 4 WHEEL DRIVE WHILE IM DRIVING?


You should be able to put in 4x4 while in drive less than 35mph. Mine had a switch to turn to engage or dis-engage.

Oct 15, 2009 | 1998 GMC Jimmy

1 Answer

My truck is stuck in 4LO and the button in the truck dont work.


If its a push button 4x4 take it to the shop its a VERY COMMON Problem dealing with the electric.Once you pay the $400 to get it fixed get rid of the truck and settle for a Jimmy/Blazer/Bravada with a floor shift 4x4..GM had problems with the push button 4x4.DONT DRIVE YOUR TRUCK IN THE MEANTIME.YOU WILL BLOW YOUR TRANSFER CASE RIGHT OUT OF IT!

May 20, 2009 | 1998 GMC Jimmy

1 Answer

Rear end is locked only the front tires spin and only in 4wd


i am not really sure unless the truck was in front of me but it sound as if you have a bad pinion gear in the rear end of the truck give these peoples a call they only sells GM-parts Schram auto & truck 1-800-292-1032 and maybe they be able to give you more information then i did.

Feb 25, 2009 | 1998 GMC Jimmy

1 Answer

2000 gmc jimmy stuck in 4lo


if you do not have auto 4x4 try resetting the 4x4 computer by pulling the courtesy lamp and the ATC fuse for 1 minute. then reinstall fuses then cycle key on and off 5 times. please rate this answer.

Nov 30, 2008 | 2000 GMC Jimmy

1 Answer

2000 gmc 4 wheel drive


Look in your fuse box for the bcm fuse (body control module) and remove the fuse atleast for a mint and then start the vehicle, put it in neutral and disengage the 4L and you are done once it is disengaged turn the vehicle off and re-insta the fuse yo pulled out and you should have no problem.

Nov 30, 2008 | 2000 GMC Jimmy

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