4wd will not engage

Asked by Feb 01, 2011 at 01:48 PM about the Chevrolet Suburban

Question type: Maintenance & Repair

the 4 wheel drive wont engage.  It makes a clunk noise in Auto4wd as i accelerate.  

4 Answers

725

What year is the suburban? does it work if you lock it into 4 wheel drive? how bout in 4 low? More details make it a lot easier to troubleshoot.

1 of 1 people found this helpful.
3,655

Does the light on the button blink when you push it?

1 of 1 people found this helpful.
65

Yes 1999 k2500 2 auto 4hi 4lo will stay lit on 2 4hi and auto when you push 4 lo it blinks but goes back to 4 hi. Actual though truck is in 2 wheel no matter what

1 of 1 people found this helpful.

I think the transmission is supposed to be in neutral before you shift into 4lo. I had an '01 Blazer with the same drivetrain as my 99 Suburban and that was the case.

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