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I have a 1996 blazer the engages into four wheel drive vacumm line are good accuator works tranfer lock in gear but front wheel do not turn

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  • 188 Answers

Sounds like a problem in the diff.

Posted on Oct 21, 2013

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Posted on Jan 02, 2017

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SOURCE: 4 wheel drive not working

when you engage it in 4 wheel make sure you are getting vacuum to the acuator just pull the hose off and feel to see if there is vacuum if not check all vacuum hoses

Posted on Jan 25, 2009

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SOURCE: 4x4 wont engage

There is a switch that has twwo wires going to it, it's located just above the motor on your transfer case,on the drivers side, one plug goes to the motor and the other goes to this switch, it's the motor that shifts it into low and high range, I'm not sure what the switch is called but it tells the front end when to lock and unlock.
Hope it helps

Posted on Mar 05, 2009

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SOURCE: Four wheel drive wont engage. Tranfer case is

Sounds like you either have a vaccum leak or your 4 wheel drive actuator is not working to engage the front differential.On my 98 ram there is a black and red plastic lines that are used for the vaccum lines. They are underneath and go from the transfer case to the front axle, check to see if one or both might be cracked or broke completely.If the lines are good then it could be your actuator on the front axle. A new one is about $93 at advance auto parts and not very hard to replace

Posted on Dec 15, 2009

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1 Answer

Four wheel drive wont engage. Tranfer case is


Sounds like you either have a vaccum leak or your 4 wheel drive actuator is not working to engage the front differential.On my 98 ram there is a black and red plastic lines that are used for the vaccum lines. They are underneath and go from the transfer case to the front axle, check to see if one or both might be cracked or broke completely.If the lines are good then it could be your actuator on the front axle. A new one is about $93 at advance auto parts and not very hard to replace

Dec 15, 2009 | 1998 Dodge Ram 1500 4WD

1 Answer

My four wheel drive doesnt work in my 87 s10 blazer , like when i put it in park to put it in gear the shifter on the floor goes into gear but the four wheel drive doesnt turn on ? is there any fuses or...


sounds like either a fuse or the do u have locking hubs that need to be engaged also when using 4 wheel drive there is actually only 2 wheels turning usually passenger front and driver back sometimes u also have to drive backwards to engage and also disengage 4 wheel drive finally it may be a transfer case problem check drive shafts and u joints make sure they are engaged

Oct 23, 2009 | 1987 Chevrolet S-10 Pickup

2 Answers

1996 chevy blazer won't engage in four wheel.


its the actuator on the front diff . this is a common problem and a easy but expensive fix

Mar 10, 2009 | 1996 Chevrolet Blazer

1 Answer

95 blazer 4x4 4 wheel drive not working


There is a vacuum actuator mounted on the front differential that locks the shafts to engage four wheel drive.

Jan 28, 2009 | 1995 Chevrolet Blazer

3 Answers

4 wheel drive not working


when you engage it in 4 wheel make sure you are getting vacuum to the acuator just pull the hose off and feel to see if there is vacuum if not check all vacuum hoses

Jan 14, 2009 | 1996 Chevrolet Blazer

1 Answer

4 wheel drive


small switch isnt working right on the top of transfer case. vacome operated. replace or check the three lines that run to it

Dec 06, 2008 | 1993 Chevrolet S-10 Blazer

3 Answers

1996 JIMMY / 4 WHEEL DR DOESN'T ENGAGE but LIGHT TURNS ON


Check the vacume line to the accuator for the cable, mine was rotted and busted. Replaced it . it goes under the battery. Problem solved

Dec 02, 2008 | 1996 GMC Jimmy

4 Answers

2001 Chevy Blazer 4 wheel drive


The four wheel drive systems in these vehicles are simple. The push button controls the four wheel drive computer. The computer tells the encoder motor (on transfer case) to shift. When the transfer case shifts there is a vaccum switch on the transfer that is activated which sends vaccum to the accuator under the battery. The accuator pulls a cable to lock the front axle in. This covers all s series trucks and suv's with push button four wheel drive but not with auto or all wheel. Now to answer some questions. If your push button is lit up but will not go in to four high you should try to reset the four wheel drive computer. To reset pull the courtesy light and atc fuses for sixty seconds install fuses then cycle key on and off 5 times. If your transfer case shifts but your front end does not lock in check for vaccum at the switch on the transfer case in and out. If no vaccum out replace switch motormite number 49315 at parts store. If you have vaccum out check accuator.

Jun 02, 2008 | 2001 Chevrolet Blazer

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