1996 Chevy Blazer Four wheel drive won't engage

1996 CHEVROLET BLAZER
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Transmission problem
1996 Chevy Blazer 6 cyl Four Wheel Drive Automatic

The four wheel drive won't engage. I changed the following: Swicth on dash, switch with 3 vacuum lines on top of transfer case, actuator vacuum below the battery.
Checked the TCCM on side panel for corrosion(is OK).Disconnected battery and computer and reconnected. Checked electric motor on side of transfer case and it was working, but now I don't hear any noise of it being activated, what could be the problem and what test can I do?
Dec 5, 2008 at 1:21 PM
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