Question about 1989 Chevrolet S-10 Blazer

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My 89 chevy s-10 pickup 4 wheel drive doesnt work. the transfer case goes into gear but the front hubs seem like they dont lock in i was told it was a fuse or a vaccuum line but i have never heard of vaccuum lines affecting 4 wheel drive

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On the 1989 s10 it has a vacuum actuator that actually locks the front differential in ,you need to check that first, those go bad real often,and without it. There's no way it will lock in the axle, the transfer case will lock in ,but the front differential uses a actuator. It 's located under the battery tray and there is a cable towards the front of the differential. Id say the actuator cable has gone out, most parts stores can get you one ,that what goes wrong with those 99% of the time and it only takes about 5 minutes to change it out. Good luck but check the vacuum line to the actuator under the battery tray.

Posted on Nov 16, 2009

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