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Anonymous Posted on Feb 10, 2014
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4wd. does not work

What could cause the 4wd. not to work? The 2wd. works fine.

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4 Related Answers

Anonymous

  • 1 Answer
  • Posted on Jan 21, 2009

SOURCE: 4WD Hi does not work on 96 Chevy K1500 Suburban

we had this same problem, under the car there is a modular,near the transfer case, it just unlugs and plug a new one in.20 min.. it is approx. $80.00 item,$ 350.00 to have it done. we were in yellowstone when we had this problem. hope this helps

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Anonymous

  • 111 Answers
  • Posted on Apr 08, 2009

SOURCE: 78' k5 blazer wont shift into 2wd

You have to stop the truck and put it in natural. It should go into 2 wheel drive then. If you have lock outs make sure that they are unlocked.

reception373

  • 96 Answers
  • Posted on Feb 13, 2010

SOURCE: 04 Z71 4wd problems

can you hear the shifter motor trying 2 shift? if not its the shifter motor open the door and try 2 listen when your trying 2 shift it

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Anonymous

  • 11 Answers
  • Posted on Mar 06, 2011

SOURCE: 2000 Chev 4x4 2500; When

either the encoder is bad or the complete encoder motor assembly. this motor and encoder is mounted on the left side of the transfer case. easy to change.
this is the most common problem with the gm electronic transfer case.

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0helpful
1answer

2001 Chevy Blazer, 2wd works, 4wd low works, 4wd high does not work.
It sounds like you are experiencing an issue with the 4WD system on your 2001 Chevrolet Blazer. Here are a few things you can try to troubleshoot the problem:
  1. Check the fluid levels in the transfer case and the front and rear differentials. Low fluid levels can cause issues with the 4WD system.
  2. Make sure that the front and rear driveshafts are properly connected and not damaged.
  3. Inspect the 4WD control module and wiring for any damage or lose connections.
  4. Check for any error codes using a diagnostic scan tool. This may help to identify any issues with the 4WD system.
  5. If the issue persists, it may be necessary to have the 4WD system inspected and repaired by a professional mechanic.
I hope this helps! If you have any additional questions or need further assistance, don't hesitate to ask
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Jan 01, 2023 • Cars & Trucks
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2008 Dodge Ram 4WD LOW light blinks while running in 2WD. When applied the 4WD High works fine as well as the 4WD LOW but the light keeps blinking and you can hear the system trying to apply 4WD LOW
Replace the motor/module on the transfercase. It has an internal short. Don't replace it. Soon you will have to replace or rebuild the transfer case and the motor.
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Oct 31, 2014 • 2004 Dodge Ram 1500
1helpful
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1998 Chevy Suburban - service 4wd light comes on after running 4x4 for 2 mins
Well it could be the selector switch, but I doubt it.
Generally, the service light means something is not working that the computer controls. Solenoids and valves are a couple of possibilities.
The transfer case is shifted by solenoids commanded by the body computer based on the switch position on the dash.
You should be able to have a shop scan the body computer for trouble codes and proceed from there.
A basic code reader may not access the body computer.
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Jul 05, 2012 • 1999 GMC Suburban
0helpful
1answer

Clicking noise
Hello, You need someone with GM experience for the particular requirements of your drivetrain. Some types are not recommended to be engaged on dry pavement and others are fulltime.
You might try looking at all of your U-joints for signs of rust tracking or grease slinging.
Work your 2WD into 4WD and back several times. Its' possible that the plungers or Solenoids which engage the gears have Varnished up and simply have not retracted completely back into 2WD position.
Do not know if you are in the States, but there are some soft-cover Repair Manuals at autoparts stores which could cover this.
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Nov 18, 2011 • 1997 Chevrolet Blazer
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I have a 1998 chevy z71 with the push button 4wd.. the truck is in 4wd hi and want go back in 2wd hi. the truck runs good and the 4wd is working but when i put it in neutral and push the 2wd hi button it...
check the 4WD shift motor on the transfer case

If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_4c166ba81493f541

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Nov 06, 2017 • Chevrolet Silverado 1500 Cars & Trucks
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When the vehicle is cold, the 4WD indicator light will come on at start up and stay on until the vehicle warms up. This results in not being able to put it into 4WD if parked in 2WD or not being able to...
there are bulletins on this the diff actuator could be bad or the switch on the transfer case is sticking
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Mar 10, 2010 • 2002 GMC Envoy
1helpful
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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
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Sep 01, 2009 • 1999 GMC Sierra
3helpful
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I have a 2003 chevy blazer LS, 2-door 4wd w/ vortec engine. The 4wd is activated by a 3-button switch on the dash (2wd-hi, 4wd-hi, 4wd-lo). The problem is I can't get it to go into 4wd-hi no matter what I...
try putting in nuetral and then shift into high gear . if still does not work sounds like the 4x4 acctuator is bad
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Jun 30, 2009 • 2000 Chevrolet Blazer
2helpful
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Switching back 4WD to 2WD - 1998 Jeep Cherokee 4L Limited Petrol
With any 4WD like this, always move a few feet in the opposite direction when disengaging. If you were moving fwd in 4wd, switch to 2wd, back up a few feet, then go fwd.
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Jun 30, 2009 • 1998 Jeep Cherokee
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Service 4wd light
what causes the 4wd to kick in when you have it in 2wd
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Mar 13, 2009 • 2004 GMC Yukon
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