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Chevrolet
Silverado
Drivetrain
Transfer Case
Symptoms
Engage
Why won't my 4wd engage
2000 CHEVROLET SILVERADO
138,000 MILES
MIKE1943
MEMBER
1 POST
My 4wd won't engage. The actuator has been changed. Diagnostics said there was a vacuum problem.
Aug 8, 2012 at 11:07 AM
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ASEMASTER6371
✓
Experienced Mechanic
52,796 POSTS
there are updates for the actuator. did you get the newest update as they had many issues with those old vacuum units.
Roy
Aug 8, 2012 at 11:33 AM
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