Question about 1994 GMC Jimmy

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4x4 not working

1997 gmc will not shift into 4x4 can here it click. replaced push button on dash also transfer case encder.still not working.any help is appreciated thank you so much.cjuf

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  • 195 Answers

Hello;
Have you checked the front axle shift solenoid? I have seen these break and have seen the fork shear as well.Make sure it is engaging when you push the button.
Thanks;
Rich
RPM Northwest

Posted on Jan 22, 2009

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My 05 gmc sierra 1500 t4x4 transmission,do not work,i press the 4x4 button blinks but dont shift?


Most likely it is just the 4x4 switch that isn't working Replaced mine in my 2000 blazer for 60bucks. This should fix the problem if not then you will be looking at a good chunk of change for the module for the transfer case. Steve

Nov 25, 2010 | 1997 GMC Sierra

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 1996 gmc 1500 pick up. When push button for 4x4 high it blinks and no 4x4. But 4x4 lo engages, I am stumped. I hear a relay clicking but like I said no 4x4 high


TRANSFER CASE MOTOR ONLY WORKING IN ONE DIRECTION 4WHEEL LOW, HAD A BLAZER WITH SAME PROBLEM REPLACED TRANSFER CASE MOTOR.

Jan 27, 2010 | 1996 GMC Sierra

1 Answer

On my 1997 jimmy 4x4,will not shift into 4weal drive, high or low never done this before.


is it electric push button
if so its a sensor on the transfer case an or one of the wheels.....
if its manuel then the main shaft is striped....
or its seezed under your jimmy an dont wanna shift

Jan 04, 2010 | 1998 GMC Jimmy

1 Answer

Got the push button 4x4 on the dash, can hear it clicking but 4x4 doesnt work period.


Hi:
There are 3 basic parts to the push button 4x4 system...The control panel with the buttons, a shift control module, that is mounted behind the center console, and a shift control motor, which is mounted to the side of your transfer case..It is tough to narrow down what the problem is. The most likely failed part is the shift control module, but there is still the possibility that the shift control motor has failed, or you have mechanical problems in your transfer case..

Nov 30, 2009 | 2001 Chevrolet S-10

1 Answer

I have a 1998 chev z71 350 Vortec with a blown transmission (push button 4x4) Can i take the transmission out of a 1997 gmc sierra 5.7 liter (Not vortec) (manual shift 4x4) and stick it in my 1998?


Yea as long as they are both manual transmissions everything will bolt up the same.If you use your old transfer case you will still have push button.

Oct 28, 2009 | GMC Sierra 1500 Cars & Trucks

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

2 Answers

I have a 97 chevy tahoe and the 4x4 wont lock in i just replaced the actuator and it just blinks on 4x4 . i do have 12 volts @ the harness to????


Your transfer case could be locked up. Try pulling the shifter motor (servo) off of the transfer case and manually shifting the vehicle into 4x4. Make sure to block the wheels as it will roll if you shift into neutral. If you cant shift it, you need to have a professional look at the insides of your transfer case.

Dec 22, 2008 | 1997 GMC Jimmy

1 Answer

1996 Yukon 4X4 Electronic Shift on Fly.


I had the same problem with the shift on the fly push-button 4x4 on my 97 Suburban. GM Shop manual indicates that it could be due to an encoder error on the actuator motor. Try pulling the transfer case fuse to reset the transfer case control module. Wait at least one minute. Re-install fuse then re-try operation. Did it last week and that saved me a trip to the dealership and extensive troubleshooting.

Nov 15, 2008 | 1999 GMC Sierra

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