Question about 2000 Chevrolet Blazer

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I have a 2000 Chevy Blazer I think its stuck in 4 wheel drive the buttons on the dash do not work or light up and it makes a weird and loud noise when you're driving down the road

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  • Chevrolet Master
  • 2,428 Answers

Jim I have a 98 blazer its not the electrionc shift like you have .
Its vacuum and cable opperated .I do have the manuals their are at least 200 pages of what could be wrong with the electronic shift system .
I have problems with the manual one but i do have the manual for yours
If I can give you information from the manual I will just need vary specific questions

Posted on Apr 13, 2015

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  • Expert
  • 38 Answers

On the kick board on the passengers side take the kick board off and there is a metal box with two nuts , take the nuts off unplug the box get a can of electronic cleaner spray at any auto shop. Spray the contacts on the box and spray the plug, let dry a few minutes and plug it in before you bolt it up start the Blazer and push the 2wd button it should light up. In my 2000 blazer I have to shut the motor off turn the key forward until the dash lights turn on
to get it out of 4wd . If that doesn't work go to www.youtube.com/watch and type in your problem click go and there is videos you can watch, that is what I do when something goes wrong with my Blazer, Also there is a Transfer Case Vacuum Switch that is probably bad it is hard to get to it is on top of the transmission it has three vacuum hoses one vacuum nose for 2wd 4wd and4wd low range. just a couple things you can check that usually fix this type of problem, I think the whining you hear is being in transfer case the book says this vehicle is not intender to operate at high speeds in 4wd.

Posted on Apr 13, 2015

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Posted on Jan 02, 2017

  • 538 Answers

SOURCE: 2000 blazer 4 wheel drive problem

It's most likely the "four wheel drive actuator" This is located on the front differential housing. It's cylindrical shaped and has a large hex (about
1-1/4") and two wires coming out of it. Usually they short out and blow the fuse but, I've also seen where they just quit working and sometimes they just get slow to work. The "actuator" has a heating element in it and it warms up, some sort gas, causing it to expand thus engaging the front wheels. In cold weather it may take a minute or so for it to engage, so put in four wheel drive and wait for a bit and see what happens.

Posted on Jan 05, 2010

  • 17 Answers

SOURCE: stuck in 4 wheel drive and wont come out.

hey there i cant tell you what you are missing but i can tell you how to disengage the front wheels . ok you have a vacum line that runs right under the battery and a line that comes up from the front diff. to the same place ( you may have to remove batt and batt tray to get full access to this) un bolt it and temporaly put batt and batt tray back in start it up and decompress this and see if it comes out .... you should here clunking noise if it goes back in ... if thats the case just pull that big vaccum line off .... to test get all four tires off the ground and have some one put it in drive but dont hit the gas it should turn on its own ...if that dont work check the cable that runs down to the differental

Posted on Aug 06, 2009

  • 1 Answer

SOURCE: 2000 Blazer stuck in 4WD

The first thing I would look at is the shift rod on the transfer case. If I remember correctly, it is on the drivers side and is a rod aboutsix inches long and has two ends that basically pop into rubber gromets. If that rod is bent in any way, or has come loose of the gromets, it will not shift into or out of the four wheel drive. If yours has electronic four wheel drive, the electric acutator could be out or going out. you should be able to remove the rod and simply move the switch by hand on the transfer case. It will get you out of 4 wheel drive until you have the ime to diagnose the electronics at least. It has happened to both my 1994 and 1999 S-10 blazers.

Posted on Apr 21, 2009

SOURCE: 1998 Chevy Blazer 4x4, $ wheel drive won't work (both 4hi & 4lo )

Reset the computer by disconnecting the battery. This should solve this. nutetral is for the four lo only to engage.

Mike

Posted on Feb 02, 2009

dmfixit
  • 226 Answers

SOURCE: 2000 chevy 1500 truck stuck in 4-wheel drive

the shifter accuator or the wires going to it on the transfercase..gl

Posted on Jan 06, 2009

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2000 blazer 4 wheel drive problem


It's most likely the "four wheel drive actuator" This is located on the front differential housing. It's cylindrical shaped and has a large hex (about
1-1/4") and two wires coming out of it. Usually they short out and blow the fuse but, I've also seen where they just quit working and sometimes they just get slow to work. The "actuator" has a heating element in it and it warms up, some sort gas, causing it to expand thus engaging the front wheels. In cold weather it may take a minute or so for it to engage, so put in four wheel drive and wait for a bit and see what happens.

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1998 Chevy Blazer 4x4, $ wheel drive won't work (both 4hi & 4lo )


Reset the computer by disconnecting the battery. This should solve this. nutetral is for the four lo only to engage.

Mike

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