4wd wont engage please help 1997 Blazer - Blazer Forum - Chevy Blazer Forums

2nd Gen S-series (1995-2005) Tech Discuss 2nd generation s-series (1995-2005) general tech topics here.

Closed Thread
Thread Tools Search this Thread
Old 05-30-2012, 11:48 AM
xillzxnickx's Avatar
Starting Member
Thread Starter

Join Date: Jan 2011
Location: long island, new york
Posts: 184
xillzxnickx is an unknown quantity at this point
Default 4wd wont engage please help 1997 Blazer

i have replaced the vacuum switch on t case the cable was slightly froozen and i broke it lose and the thing that pulls the cable works fine. the front drive shaft spins but wont engage if you manually pull the cable in makes a slight click but not engaged

the car use to always try to be engaging the 4wd because the vacuum switch ball was stuck up but even with the vacuum thing always pulling the cable it wasnt in 4wd

this is a 1997 blazer 2 door 5 speed
Old 05-30-2012, 02:57 PM
Captain Hook's Avatar

Join Date: Mar 2009
Location: Belleville, Michigan
Posts: 8,421
Captain Hook is a jewel in the roughCaptain Hook is a jewel in the roughCaptain Hook is a jewel in the rough

If the transfer case does not engage the front driveshaft, there could be a problem with the TCCM or encoder motor. Engine at idle, trans in neutral, 4WD selected: The vacuum line at the axle actuator under the battery must have manifold vacuum. If it does, make sure the cable pulls in about 1/2" to 3/4". If the cable pulls in, the right front wheel should lock in. If not, the clutch mechanism in the axle tube needs attention.

Last edited by Captain Hook; 05-30-2012 at 03:00 PM.
Closed Thread

Related Topics
Thread Thread Starter Forum Replies Last Post
1997 Blazer 4x4 wont engage transfer case camaro6102 Engine & Transmission 0 09-15-2013 11:21 PM
4wd wont engage need help! gibson308 2nd Gen S-series (1995-2005) Tech 2 09-18-2011 04:36 PM
98 blazer ticking noise/4wd wont engage maty98blazer Steering, Suspension & Drivetrain 4 02-16-2011 01:25 PM
4wd problems wont engage breakyadown89 Steering, Suspension & Drivetrain 4 12-09-2009 06:34 PM
4wd wont engage catruck Steering, Suspension & Drivetrain 1 04-06-2008 12:45 AM

1995, 1997, 4wd, 97, bb, blazer, cable, chevy, constantly, engage, pull, pulling, s10, stuck, vacuum, wont

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -5. The time now is 07:36 PM.