98 s10 blazer 4x4 will not engage - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 02-12-2001, 08:24 AM
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98 s10 blazer 4x4 will not engage

1998 s10 LS Blazer. it snowed yesterday. no 4x4. it worked on Tues. I start the truck, the 2hi light on the button is on. all normal. press the 4hi and there is a click behind the glove box, the light flashes once on the button, but nothing happens. same with the 4lo. no other system errors. 2hi works fine. no other noises or glitches. What should I do? Please say it is something simple. heading for moab on Thursday. Thanks....

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post #2 of (permalink) Old 02-12-2001, 10:43 PM
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Re: 98 s10 blazer 4x4 will not engage

Check to make sure the wires to the switch are fully connected. Since you have a '98 it should be easy to get to it... you'll need a 9/32" socket [img]/wwwthreads_images/icons/smile.gif[/img]...

After that check to make sure that there are no wires undone on the differentials. Check from the transfer case to the front pumpkin. Since these are electric solenoid type units there should be no vacuum concerns.

Are you doing this from a standstill or in motion? Try either way. Try to engage 4 LO while in motion, you should at least get a blinking light.

Doesn't your truck have a service tranny or server 4x4 light? I think mine does, so it's probably something minor (let's hope)!

That's all I can think of at this point...

J.R. [img]/wwwthreads_images/icons/cool.gif[/img]

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