Question about 1994 Chevrolet S-10 Blazer

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Where is the 4 wheel actuator switch on a 96 S10 pickup it will not engage the light flashes then goes out

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There is a vacuum plunger that sticks and it is on the top of the transfer case above the front drive shaft.It has 3 vacuum lines going to it.The actuator itself is under the battery tray.You will have to remove the battery and battery tray to get to it.I would check the plunger first.Takes a 7/8 wrench.Just remove it and try to push in the metal plunger.It might be stuck in the in position already.If it is then it will not move.You should be able to push it in and out.If you can`t then replace it.Good luck.

Posted on Dec 10, 2009


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