Question about 1999 GMC Jimmy

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4x4 service light is on

Service light is on and the lights on the 2wd - 4 hi - 4 low are out

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  • 193 Answers

There was a problem with the push button type.cols solder joint on circuit board. Or the Actuator at the transfer case is gone out. I believe it goes through a self test every time the key is turned on.If there is a short or open when tested is disengages 4x4(no light at switch). A scan tool can tell if its the switch or actuator. Not the little cheap scan tool the high dollar one most shops own.

Posted on Dec 06, 2012

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Posted on Jan 02, 2017

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  • 4 Answers

SOURCE: 4X4 LIGHT KEEP'S FLASHING

Gm has had a huge problem with their 4x4 switches on those models. Replace the switch it's about a 10 minute job.The switch is about $70.00

Posted on Jan 12, 2009

SOURCE: 4x4 not shifting into high

hi how are you doing? just had same problem with by gmc i replaced the transfurcase motor and it works fine. the electric motor moves the shifter in your transfurcase from 4hi to 4lo and 2hi.there is only 3 things that operate your 4x4 the switch the motor and the control modgual.

Posted on Jan 28, 2009

  • 3 Answers

SOURCE: 2000 yukon xl. 4x4 wont engage

My 2000 Yukon XL with 5300 engine had same problem at 115,800 miles in Aug 2006(I bought the vehicle new January 2000)...My GMC dealer did diagnostic and replaced a faulty 4WD Transfer Case Shift Control. (reading from the service invoice) It was GM part number 15709327. Cost for the repair was $41.48 + labor $74.13, total was $115.71...it now has 165,000 on it and so far no problem and the 4WD works when I need it.

Posted on Feb 27, 2009

wikkidd420
  • 96 Answers

SOURCE: wont go in hi 4x4 light flashs then go,s out

Most likely this is a simple dissconnection on the top of the Trans. I believe that your model is electronically controlled, but vacuum shifted. Check the small hose that runs from the intake to the top of the trans. Let me know if this helps :)

Posted on May 27, 2009

  • 285 Answers

SOURCE: service 4wd light is coming on but 4wd works fine

i had the same problem in my 99,i replaced the switch assembly on the dash and all is well,hope this helps

Posted on Sep 05, 2009

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1 Answer

Jeep stuck in 4wd High


For troubleshooting these issue,Few related help links are provided below.Click the link below and go through its troubleshooting procedure:----Jeep 4WD Idiot Light is ON? http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
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Service 4wd warning light on Dash? http://howtobyme.blogspot.com/2011/11/service-4wd-warning-light-on-dash.html
---------------Car automatically switches to 4wd low? ------------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
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No 4x4 light on dash?

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

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

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4WD light is flashing and beeping? NO 4WD high? http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
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Jul 17, 2012 | 1988 Jeep Cherokee

1 Answer

When in park and put in 4x4, Relay in dash clicks 5 times and both 4wdH and Lo lights come on.


The actuator has a spring that is known to break easily in mid-late 90's chevy's.

Jun 17, 2012 | Cars & Trucks

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How do you use 4WD on a 1999 dodge durango?


there are 2 systems.
one is a part time system only.the 4x4 locks and is for ice mud and snow.Driving full time will damage the transfer case.The other system is a full time system and the selector says 2wd,4wd part time ,4wd full time and 4 lo. if in full time,it can be driven all the time even on dry roads.The full time is really an all wheel drive system.
the 4low is a very low gear and the main shifter has to be put in neutral and then the transfer case put in 4 low.attempting to put it in 4 low while in "drive" will make a gear grinding noise.
getting out of 4 low is the opposite.shifter to neutral and then put it in 2wd and then in drive.The newer durango has an electronic transfer case with a dial on the dash.The 2002 was available with 2wd,4wd,awd and 4 lo on a switch.The 1999 has the lever on the floor .

Feb 12, 2010 | 1999 Dodge Durango

1 Answer

1994 ford ranger 4.0 4x4 supercab


My wife just recently had a similar problem. She got stuck in the mud and put our 2004 F150 in 4x4 Low to get out. She didn't. Had to have AAA pull her out. She then left a bit later and the truck was still in 4x4 Low even after switching to 2WD. She even tried going backwards to get it to switch. So she called me frantically and I said I'd call her back. So I called our local Ford Repair shop and he gave me these instructions (loosely based on what the owner's manual says to do)

1. Start Vehicle
2. Switch to 4x4 Low
3. Put in Neutral
4. Switch to 4x4 High
5. Go in Reverse for a bit and then Forward a bit again
(You should now be in 4x4 High)
6. Put in Neutral
7. Switch to 2WD
You should now be good. If that didn't work, then try repeating step 5 after step 7.

Hope that helps, as it worked for us.

Feb 22, 2009 | 1994 Ford Ranger Supercab

4 Answers

2004 Chevy Silverado Z71 stuck in 4 low


I HAVE THE SAME PROBLEM. CHANGED SWITCH AND THE SAME THING. I START THE TRUCK AND IS IN 4 HI. THEN HIT AUTO AND THEN 2WD THEN IT SHUTS OFF. AND SERVICE LIGHT COMES ON. STAYS IN 2WD. I CAN HEAR ACTUATOR WHEN TRUCK KEY IS TURNED AND CHANGE WHEN BUTTONS ARE PUSHED. I READ IT COULD BE GROUND UNDER DRIVER SIDE BAD. NEEDED TO BE CLEANED. I WILL TRY TOMORROW

Nov 24, 2008 | 2004 Chevrolet Silverado 1500 Crew Cab

3 Answers

2004 Sport Trac stuck 4x4 low


Start the vehicle put the 4x4 switch to the position the light on the dash states it is in. then put it in nuetral, hold your foot on the brake switch the 4x4 switch back to 2wd wait a few seconds and the light on the dash should switch back to 2wd. and you should be back in 2wd

Sep 04, 2008 | 2004 Ford Explorer Sport Trac

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