2002 blazer 4x4 wont go into 4hi

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2002 blazer 4x4 wont go into 4hi

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Chevrolet >> Chevy Trucks, Vans & SUV's >> S-10 & Blazer >> 2002 blazer 4x4 wont go into 4hi

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2002 blazer 4x4 wont go into 4hi - 12/5/2006 8:43:09 PM

shawnman2001

Posts: 1
Joined: 12/5/2006
Status: offline

I need Help
I have a 2002 blazer ls and i will not go into 4hi. when i push the 4hi button while in park or drive it does nothing. not even blink. If i puch 4hi in neutral, 4hi and 4lo lights blink a few times then it returns to 2hi. If i push 4lo while in neutral it engages and works fine. I dont understand why it will not go into 4hi if it goes into 4lo just fine. anyone have any ideas. The snows getting deep and id like to use 4hi. Thanks
Shawn

Post #: 1

RE: 2002 blazer 4x4 wont go into 4hi - 12/13/2006 9:34:36 AM

GUS

Posts: 3
Joined: 12/12/2006
Status: offline

I HAVE A 2003 S-10 AND HAD THE SAME PROBLEM.ON THE PASSENGER SIDE BEHIND THE KICK PANEL THERE IS A TRANSFER CASE CONTROL MODULE .THE CONNECTION ON MINE WERE CORODED I CLEANED THEME AND PUT DIELECTRIC GREASE ON IT NOW WORKS FINE

(in reply to shawnman2001)

Post #: 2

RE: 2002 blazer 4x4 wont go into 4hi - 12/16/2006 4:41:49 AM

kcb37

Posts: 504
Joined: 7/3/2006
Status: offline

That sound like a good start and hopefully an easy fix. You also have an actuator or something like that on the transefer and the front axle that shifts the transfer and the diff in. If you check the plugs and they are good, (check on the transfer too) check that.

(in reply to GUS)

Post #: 3