Question about 1998 Chevrolet Blazer

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My blazer wont kick into 4 wheel drive - 1998 Chevrolet Blazer

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  • Chevrolet Master
  • 2,428 Answers

It could be a few things the system is vacuum opperated runs off the engine vacuum throgh a switch on the transmission then to whats called an actuator that is located under the battery on this vehicle then goes from there to the front carrair where the vacuum pulls the control level to shift it into 4 wheel . Doyou have a shift lever manual or the electronic shift control . I have the complete factory manual for bolth but the manual shift is far less complex .If you need i will E.MAIL what you need but tell me some more if you can about the problem first mabey it can be quickly idenified and easly corrected with out me haveing to send pages of information that may or may not be relivant to your problem pier.j@sbcglobal.net

Posted on Apr 03, 2011

  • JOHN LAPIER Apr 04, 2011

    iDON'T KNOW WHAT MORE ANYBODY COULD ASK FOR TO FIX THIS PROBLEM?

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Posted on Jan 02, 2017

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SOURCE: 1999 chev blazer 4x4 system

When you say that the 4wd won't engage, I assume you mean that the front differential is not locking in. If memory serves me correct there is a 3 port vacuum switch located on the top of the transfer case that gave a lot of problems. When the transfer case is shifted to a 4wd mode (high or low) this vacuum switch changes position and routes engine vacuum to the actuator located under the battery tray. This actuator then pulls a cable that move a fork inside the front differential that locks the front diff in 4wd. The vac switch gave a lot of trouble, but any broken vac hoses or differential internal mechanical issues could present as the same issue.

Posted on Nov 23, 2008

  • 33 Answers

SOURCE: 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.

Posted on Dec 13, 2008

SOURCE: 2000 chey blazer s10 wont go into 4 wheel drive

Need more information, but try to engage with engine at idle and transmission in nuetral and then slowly put into gear. Some vehicles will only engage 4wd system in D for Drive not the D with the circle around it for Over Drive, due to speed restrictions on the system. 4H is used for inclement weather and snow for highway use or cruising off road. 4L should only be used OFF road not on pavement and for slow speeds only. If that does not work put in drive and slowly move vehicle forward with 4wd switch engaged shift to nuetral while coasting and then put into a forward gear NOT reverse and it should engage, make sure you do not have locking hubs as well, I don't know many vehicles that have locking hubs as of late, but I could be mistaken. Hope this helps. Other post have also stated that the 4wd switch could be faulty, and can easily burn out.

Posted on Jan 11, 2009

  • 366 Answers

SOURCE: My 4 wheel drive push buttons flash in 4h and 4l and auto 4wd.

common problem with these is corrosion at electrical connector in control box located on passenger side behind kick panel

Posted on Mar 01, 2009

  • 2 Answers

SOURCE: 1998 chevy s-10 blazer. 4 wheel drive does not

try putting it in neutral while it's running with foot on the brake then push 4 hi or 4 lo it should switch over then. Had the same problem on my 98 blazer the other day.

Posted on Oct 30, 2009

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Related Questions:

1 Answer

My 4 wheel drive wont work. i will try to put it in and the light will just blink and it wont kick in to 4 wheel drive. how do i fix this?


You need to have the gears synchronized, this is right out of the manual that came with your blazer. If your light blinks and does not go in 4HI and 4LO, then the gears are out of sync. And should not go into anything but 2HI

Feb 19, 2011 | 2002 Chevrolet Blazer

2 Answers

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

1 Answer

96 blazer


With the selector in 2WD, attempt to slowly move the car forward (drive)and backward (reverse) in an area of 15 or 20 feet. That should release the 4WD gearing engagement.

Good luck
Aduz

Mar 27, 2009 | 1999 Chevrolet Blazer

1 Answer

Goes into 4-wheel drive when it is turned on


check for corrosion at elect. connector of the control box behind kick panel on pass. side.

Mar 11, 2009 | 1998 Chevrolet Blazer

3 Answers

My truck is stuck in 4 lo


pull atc 25 amp fuse in underhood fuse center and 10 amp 4wd fuse inside cars fuse box,your problem is in control box behind kick panel on pass. side ,corrosion build up,

Mar 06, 2009 | 2000 Chevrolet Blazer

1 Answer

My 4 wheel drive push buttons flash in 4h and 4l and auto 4wd.


common problem with these is corrosion at electrical connector in control box located on passenger side behind kick panel

Mar 01, 2009 | 1999 Chevrolet Blazer

2 Answers

1996 blazer wont go into 4 wheel drive


Try replacing the vacuum lines that go to the transfer case from the engine. I had the same problem on a 95 Jimmy and was told to do it.... I changed every piece of vacuum hose that had anything to do with the 4x4 and it worked. Hope this helps you out

Jan 20, 2009 | 1996 Chevrolet Blazer

1 Answer

1993 Chevrolet S-10 Blazer won't go into 4-wheel drive


no fuse...mine was stuck in low and i had to replace vacume hose in the transfer case about 200.00 bucks

Dec 29, 2008 | 1993 Chevrolet S-10 Blazer

1 Answer

2000 blazer stuck in 4 wheel hi


check the shift motor if it is the push button transfer case. I have heard of the motor going bad in the s10 blazers

Dec 27, 2008 | 2000 Chevrolet Blazer

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