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2000 Silverado 4 Wheel Drive Not Working.


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#1 Rod6928

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Posted 18 May 2009 - 09:54 PM

I have a 2000 silverado 5.3. i was out this weekend and tryed using my 4 wheel drive and it acts as if it isnt engaugeing when i shift into 4 hi or lo. the lights come on like they should, but the front wheels would not spin. what could be the cause of this? :sigh: :D

#2 bill190

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Posted 19 May 2009 - 07:09 AM

If no one has an answer to your question, I would suggest you get a factory service manual set from your GM dealer. This is a 4 book set which gives detailed troubleshooting instructions for everything for your specific vehicle.

And being as everything is electronic these days, troubleshooting many things requires the use of a voltmeter and ohm meter (multimeter) to check various sensors, actuators, etc.

#3 Alljackedup408

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Posted 19 May 2009 - 04:21 PM

i would try replacing the 4 wheel drive switch. They are common to go out, it might look like its working.. flashing and all but really is doing nuttin. Do you have any abs lights on? wheel speed sensor codes and EBCM problems also will not allow the truck to go into 4 dig. let us know.
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#4 Rod6928

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Posted 19 May 2009 - 05:40 PM

i would try replacing the 4 wheel drive switch. They are common to go out, it might look like its working.. flashing and all but really is doing nuttin. Do you have any abs lights on? wheel speed sensor codes and EBCM problems also will not allow the truck to go into 4 dig. let us know.



i do not have any ABS lights on nor is there any codes that are popping. 4 wheel drive works when it wants to. this has been happening for about 2 months now.

#5 Alljackedup408

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Posted 19 May 2009 - 09:04 PM

im going to say from personal experience its the 4x4 switch on the dash... but it could also be a bad connection somwhere. hard to say not seeing the truck and being able to test it!
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#6 Rod6928

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Posted 19 May 2009 - 10:36 PM

im going to say from personal experience its the 4x4 switch on the dash... but it could also be a bad connection somwhere. hard to say not seeing the truck and being able to test it!



thats what it almost seem like is a bad connection. thank you for your help. i will start to try and trouble shoot the wireing and see were that gets me. i dont much to get into depth with right now being that i am getting ready to deploy. thanks again.

#7 bill190

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Posted 19 May 2009 - 11:09 PM

...thats what it almost seem like is a bad connection...


Well that is the idea behind getting a factory service manual set. This explains how everything works for your specific year/model vehicle.

As to the electrical for this, one or more of the books will show you all the electrical components involved with this, and where each component is located.

And that is the BIGGIE! Where is the darn thing located? It shows you in these books.

Then you can examine the wiring/connections to each thing.

In difficult cases like intermittent electrical problems, you can run temporary wires to the gizmo from inside your vehicle and monitor the electrical signals with a multimeter.

Then when the problem occurs, you can see if something is getting power as it should or is not. Then test another component if that is working ok. Etc.

#8 svensk

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Posted 19 May 2009 - 11:21 PM

4x4 switch in the dash. This has happened to everyone. I have the same issue and I know it's the switch.

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#9 bill190

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Posted 19 May 2009 - 11:27 PM

4x4 switch in the dash. This has happened to everyone. I have the same issue and I know it's the switch.


The factory service manual set is around $150. I would think the dash switch would be much less expensive and worth a try first... (And sounds like it will need replacement anyway!)

#10 grampadirt

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Posted 20 May 2009 - 05:24 AM

4x4 switch in the dash. This has happened to everyone. I have the same issue and I know it's the switch.



I like my manual shifter :) ....just hate the gas operated actuator :thumbs:

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#11 firstrock

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Posted 20 May 2009 - 11:01 AM

I like my manual shifter :rollin: ....just hate the gas operated actuator :)


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#12 Alljackedup408

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Posted 20 May 2009 - 04:05 PM

lol
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#13 1BAD02

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Posted 07 January 2010 - 10:09 PM

Not to hijack the post but my trucks been sitting for about 2-3 months and its been cold here(iowa). I tried using the 4wd, both hi and lo, and neither work, the light flashes the goes solid like its engaged. It can also hear it engaging but it still in 2wd but it shows 4wd. If anyone knows or has had this problem let me know! thanks guys.

#14 vettenova

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Posted 08 January 2010 - 11:59 AM

My truck 2002 silverado z71 does same thing. The lights on switch work but front wheels do not engage. The 4wd stopped working last year then worked once this snow now not again.. I do have an abs light on since I redid brakes which su*k but thats another thread! Could it be caused by abs light or maybe switch? It did work for awhile w/ abs light on

Truck is all stock w/ 43000 miles on it

#15 Nytemare

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Posted 08 January 2010 - 01:23 PM

your front 4wd actuator in the diff is gone is gone, or the fuse/relay that gives it juice. unplug it and test for voltage at the plug..if you have voltage than the actuator is gone...no voltage its the fuse...or relay

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so you expected something that weights 5000 pounds and has aerodynamics of a piano to get what?


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