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2000 blazer four wheel drive wont engage - 2000 Chevrolet Blazer

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From experience, the actuator on the front diff has a tendency to go out which will cause the 4wd to not engage.

Posted on Dec 15, 2009

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Posted on Jan 02, 2017

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1 Answer

2000 chevy blazer passenger front wheel noise


driving in 4wd on hard surfaces produces what is known as torque wind up as the wheels cannot slip so the variations of distance going around corners , dips in the road etc place considerable strain on the transmission , transfer case , drive lines and diffs
that is why it is difficult to get out of 4wd unless you drive with 2 wheels on a grass verge to relieve that torque wind up
as for the noise check wheel bearings and the cv ("U") joint at that wheel as there appears a proble where the dog teeth in the hub are not engaging properly or are jumping out of engagement

Mar 26, 2017 | 2000 Chevrolet Blazer

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My 4 wheel drive will not engage and the 4 wheel drive service light does not come on. what could be the problem/


check your four wheel drive fuse.if its ok.check for vaccum to your transfer case switch if it is vaccum operated.if it is electrical check for b+ at the transfer case switch.if there ok check for b+ at the front axle acctuator.if its ok it is probably your transfer case module.

Jan 24, 2011 | 2000 Chevrolet Blazer

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4 wheel drive wont engage on kia sportage 2001


there are vacum line one on each side behide the wheels see if they are broke or leaking i had the same problem

Feb 10, 2010 | 2000 Kia Sportage

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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.

Jan 05, 2010 | 2000 Chevrolet Blazer

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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

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Jimmy wont lock in four wheel drive.


You need to see if the transfer case engagement motor is defective.

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Stuck in two wheel drive. I changed my front wheel bearing the four wheel drive went out. The four wheel drive lights on dash blink then go out. Service 4 wheel drive comes on. Is there a servo that...


There is an electric motor that engages drive.  Mine was stuck and a mechanic beat it w a hammer while I was in vehicle w brake on in drive pushing the diff 4wd buttons.  It freed up and started working fine!!  It looks like a small starter under car on passenger side. Or buy one on ebay  for cheap and replace it

Jul 21, 2008 | 2000 Chevrolet Blazer

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