Question about 1999 GMC Sonoma

1 Answer

No 4wd. on 1999 gmc sonoma

4wd does not engage when put in 4wd hi or lo,switch lights up and i can hear loud clicking under vehicle

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    Habit-Forming:

    Visited the website for 3 consecutive days.

    Corporal:

    An expert that has over 10 points.

  • Contributor
  • 18 Answers

Sounds like a vaccum hose is off

Posted on Dec 31, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert 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 repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 1 Answer

SOURCE: service 4wd light

what causes the 4wd to kick in when you have it in 2wd

Posted on Apr 05, 2009

autodr
  • 260 Answers

SOURCE: 1998 jimmy 4 wheel drive problem

are any of the lites on the switch flashing? you may have a sticking 4x4 shift motor on the transfer case. with a helper, key on someone under vehicle at shift motor, one operating the 2wd button, give shift motor a rap with small hammer on metal portion of shift motor to see if you hear it trying to work. to access control module, remove plastic right kick panel and its right there. remove connector and inspect for corrosion or bad connection. also try park and neutral, may even have to be rolling a bit to disengage. let me know how you make out and will help further if i can. do you know what transfer case system you have? np1 or np4?

Posted on Nov 23, 2008

  • 61 Answers

SOURCE: 1999 gmc jimmy stuck in

need to check the fluid in transfer case

Posted on Dec 20, 2008

  • 3 Answers

SOURCE: 2000 gmc yukon xl 4x4 wont engage

see my posting re this at my name: rlf107. $115 in parts and labor solved for me, on a 2000 Yukon XL

Posted on Feb 28, 2009

  • 124 Answers

SOURCE: 4wd will not engage on my 1996 GMC Sierra 1500 pickup

Ok the drive shaft will spin thats good. remove the front driff actuator and see if the plunger extents. if it doesn't check that the power and grond ar ok. If they are then replace the actuator. Just so you know the two actuator may be diffrent. If it has been replaced no problem. If it hasn't ever been replaced then ther is a updated part it come as a kit witha harness spacer and actuator.

Posted on Dec 17, 2009

Testimonial: "Fixya pointed me in the right direction to find the problem. It was in fact the front actuator which was not expanding. The 4wd is working. Thanks."

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

2003. Why doesn't 4wd work?


How to Diagnose and Repair Chevy Blazer and ... - YouTube

? 7:13
https://www.youtube.com/watch?v=IP0jhBG0jv4
Jun 30, 2012 - Uploaded by Mark Jenkins
How to Diagnose and Repair Chevy Blazer and GMC Jimmy 4WD\ 4x4 Issues .... The transfer case either doesn't want to engage, or it gets stuck in 4 lo. ... my s10 4x4, I watch your videos and I start to work on my truck,I start ...

How To Install Replace 4WD Front Axle Vacuum Actuator ...

? 9:02
https://www.youtube.com/watch?v=stooGR4BcjE
Mar 2, 2012 - Uploaded by 1A Auto Parts
I have a 1996 chevy blazer ls...my 4 wheel drive stoppedworking. ... 4l and I hear the click underneath me, but that's it..itdoesn't engage, but the ... I have a 2003 gmc Sonoma and when I put it into 4 high it feels like it does

Nov 19, 2015 | Chevrolet Blazer Cars & Trucks

1 Answer

On my 1999 gmc jimmy the lights on 4wd switch are out and 4wd wont engage. the switch is good(tried it in my 2001 Sonoma)and the 2 switches at transfer case were changed still nothing. Any clues?


On my 01 Yukon it was the switch in the dash. I took it apart abd found several bad soldier Joints. I found the same problem in the rear AC controller module. You can buy a new module or take yours apart

Sep 17, 2014 | 1999 GMC Jimmy

1 Answer

4wd service light in dash just came on. cannot put into 4wd.


There are actuators on the front axle and the transfer case, check them both.

Feb 10, 2014 | 2000 Chevrolet Silverado 1500

1 Answer

Stuck in 4 wheel lo, how do i get it back to 2 wheel hi ?


On these issue, there are few solved help links for troubleshooting the issue easily.-------

Click the link below: ---

No 4x4 light on dash?

http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html

-----------

4X4 Truck makes roaring noise in the front end?

http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html

-------------

Car will not go into 4WD high or 4WD low?


http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html

--------------

No 4x4 light on dash?

http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html

------------

4 wheel drive system will not disengage?

http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html

----------

4WD light is flashing and beeping? NO 4WD high?

http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html

----------

2002 Jeep Wrangler: 4WD Idiot Light is ON?

http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html

----------

Traction control switch will not engage on 4WD High or Low

http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html

-----------

4WD light flashing and 4WD will engage after few minutes

http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html

------------

2008 Toyota Tundra: 4x4 Wheel Drive Light is Flashing?

http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html

----------

4x4 front differential will not engage the axle on ford?

http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html

-------

4x4 will not engage on Ford F150?

http://technoanswers.blogspot.in/2012/02/4x4-will-not-engage-on-ford-f150.html

-------------

Dodge Ram 4x4 light keeps flashing

4X4 LOW LIGHT IS FLASHING ON DASH

http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html

----------

Ford 4x4 front wheels will not engage?

http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html

-------------

These details will help.

Thanks.

Dec 09, 2012 | 1999 Chevrolet Blazer

1 Answer

For 4x4 gmc sonoma is the 4 wheel drive light is always supposed to be on


It's only suppose to be on when the 4WD is in use and should be off when in 2WD. If the light is on, replace the 4WD switch on top of the transfer case, drivers side. You can pick up the vacuum switch at Auto Zone, Napa for around $25.00 and is common to fail. When they fail, the vacuum to the front axle hub actuator will stay engaged and the axle will always be engaged. it's a simple fix and should take you 15min to replace if you can get under the Sonoma with out jacking it up off the ground.

Disconnect the vacuum line from the switch and unscrew the switch out from the transfer case with a 3/4 inch wrench i believe. No need to worry about Teflon tape, the switch is tapered and will not leak fluid.

Good luck and thank you for using Fixya.

Feb 23, 2010 | 1992 GMC Sonoma

1 Answer

I have a 2001 GMC Sierra Pickup that has electronic 4WD that will not engage. If you press the buttons to enter from 2HI to 4HI, 4LO, Etc. the choice of the button changes (lights up) but the truck does...


fullyjr.

Engaging from 2WD - 4HI/Lo requires movement of the vehicle. very low speed under 5mph, push button should engage. the vehicle has to be moving.

Feb 04, 2010 | 2001 GMC Sierra Crew Cab

1 Answer

1997 Sonoma won't go into 4wd. When the 4wd button is pushed it


check the actuator under the truck at at the transfer case may need adjustment or lube the actuator rod

Dec 14, 2009 | 1997 GMC Sonoma

Not finding what you are looking for?
1999 GMC Sonoma Logo

Related Topics:

232 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

74896 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

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

Answer questions

Manuals & User Guides

Loading...