Help with 4x4 in my 91 S10 Blazer

Asked by murderbu Nov 02, 2016 at 11:46 AM about the 1991 Chevrolet Blazer 2-Door 4WD

Question type: General

May be a silly question, but i need to know
how exactly to shift the vehicle into 4hi and
4lo. I seem to get a grinding while shifting
into 4lo. It is the floor shifter 4x4 with an
automatic transmission. can somebody
help? thanks! (s10 not k5 Blazer)

60,305

Andrew answered 7 years ago

You need to be in neutral and not moving to shift into low range

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Nickchevy answered 6 years ago

The s10 blazer has a vacuum actuator that sits under the battery tray in those years and goes bad a lot there's a couple ways to fix one which is cheapest is pull and clamp the cable so your front axle is always engaged witch isn't good for on road or get a kit that'll aloe you put a lever on your blazer to engage it or just fix yours witch will probably cost a lot depending if it's the actuator or just a leaky vacuum hose but that is why 4 wheel drive isn't engageing

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