Question about 2001 Chevrolet Blazer

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2001 Chevy s10 Blazer. I have a service 4wd light. i can dissconnect the battery and the light goes away. when i drive the 4 lo light will come on from time to time and flash like its trying to engage and the times out. when i try to select 4 hi or 4 auto it doesnt engage and the service 4wd light comes back on. what do i need to replace?

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2001 Chevy Blazer it likes to stay in 4 low. replaced sensor, pannel motor, older computern to check it was placed for a couple weeks or less it will do the same thing again. Just dies and quits has to be restarted agin still in 4 low . Tried to shift the gears slowly, Place in reverse and 2HD pressed and held while backing up this dinn't work either. To get it home I had to hold it in neutral and run the gears again ginally I got it to a shop. He is out of ideas too.

Posted on Nov 17, 2011

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The t case control module is behind the pass kick panel unplug it then plug it back up then try to shift the tcase if this lets it shift a time or to before it locks up the control module is faulty.

Posted on Jun 06, 2014

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First test switch for faulty ground or short --than check actuator wiring an for movement may need to be lubed actuator may be sticking if look good than have truck scanned most auto stores offer this service for free the code will pinpoint ur problem

Posted on Jul 28, 2010

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1988 Chevy S10 Blazer (4wd/4.3) won't start & brakelites come on.


think your starter motor is no good or the battery is flat ,try charging the battery for a couple of days as well

Apr 03, 2010 | 1988 Chevrolet Blazer

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I have a 1996 chevy blazer and dont know how to disengage from four wheel drive to two wheel drive?


As I recall the 96 blazer had electronic shifting for 2wd to 4wd. There should be a small panel on the drivers dash buttons for 2wd, 4wd lo and 4wd hi.

Simply press the desired button while stationary and if the system is functioning properly then it will shift and the light for the engaged type of drive will be lighted. Generally you would like to be in 2wd for this vehicle.

Mar 10, 2010 | 1996 Chevrolet Blazer

2 Answers

1996 chevy blazer will not go into 4wd hi but it will go in to 4wd lo. when you push the 4 Hi button it just flashes and then does nothing.


The major components to this system are a shift control motor that is mounted to the transfer case, and a shift control module that is behind your center console. since the transfer case is still shifting into 4wd lo, the shift motor is still moving somewhat, so the most likely cause is the shift control module, but there isn't an easy way to troubleshoot between the two...

Nov 16, 2009 | 1996 Chevrolet Blazer

1 Answer

How to shift in and out of 4 wheel drive with a push button system on a 93 s10 blazer


this sytem is shift on the fly!! you can engage and disengage from 2wd to 4wd at speeds up to 45-50mph, 4wd lo you need to be a complete stop some cars need to be in neutral with parking brake on and some need to be in gear there all different, consult your owner manual for correct shifting pattern to 4wd lo range

Sep 26, 2009 | 1993 Chevrolet S-10 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

4wd does not work


check vaccum actuator located on passenger fender under hood or under battery tray

Jan 13, 2009 | 1998 Chevrolet Blazer

4 Answers

My 98 chevy blazer won't shift into 4wd.


Had the same problem, disconnected the battery for about fifteen minutes, reconnected, 4 wheel drive hi and lo work like a charm now.

Dec 14, 2008 | 1998 Chevrolet Blazer

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