Question about 2000 Chevrolet Blazer

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95 Blazer 4X4 Problem

I have a 95 Blazer with a 4.3l and push button controls for 4 wheel drive. The problem started last year. It would only go into 4hi or 4lo if I was stopped and in neutral. Now this winter even stopped and in neutral doesn't work. The lights flash then it returns to 2hi. I've replaced the vacuum switch on the transfer case but that did nothing. I can hear the encoder motor run and the tccm click. I checked the vacuum accuator and it pulls in sometimes but not everytime. I seem to have good vacuum at the actuator. I'm lost. Bob

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  • justone11 Feb 02, 2009

    I have the exact same problem with my 95 Blazer Ls 4.3L that just now started about two weeks ago, but i can't figure out what is going on at all. MIne will only engage into 2Hi or 4Lo, but not into 4Hi. I can hear it engage from 2Hi to 4Lo and visa versa, but not to 4Hi. I just don't understand what is going on.

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Maybe changing the actuator is the next step. it may pull but not hard enough to engage the front axle

Posted on Jan 20, 2009

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Ok I just got my 4x4 working again. I got it to work by taking out the 4wd, brake, and I believe the ctsy fuses for about one minute each and put them back in and now my 4x4 works like it used to. If that works for anyone else great, but if not then good luck finding a better solution to the 4x4 problem.

Posted on Feb 03, 2009

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1 Answer

4 wheel drive service light on the dash panel lit up on my 2000 chevy blazer, cannot push any buttons for 4 wheel drive to work, what could be the problem


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My truck is stuck in 4 lo


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1994 chevy s10 blazer 4x4 push button type


small sylinoid on the top of the transfer case needs replaced. easy to do. it has three vacumelines going to it just trun out and replace like a bolt.

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Transmissions


ok i think you have push button 4 wheel drive , so you might want to raise the car and check the wiring to the engage engine, if im wrong and you have a floor shifter check the linkage .

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