Question about Chevrolet Blazer

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My four wheel is not working. When I switch from 2 wheel to four it doesn't switch. I've had this problem before and I had to turn to four wheel then go to neutral, but now it is not switching to four wheel at all.

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  • 376 Answers

I need to know what kind of vehicle, but here it goes.
most are either vacume operated or electronically operated, check for bad switches and/or cracked vacume lines.

Posted on Dec 30, 2010

  • sjenkins161 Jan 03, 2011

    98 chevy blazer and I had a mechanic look at and he said the vacuum is working. I also tried disconnecting the battery for 10 mins or so.

  • Brad B
    Brad B Jan 03, 2011

    just because its got vacume does not mean its getting it when the switch is selected, check before and after the selector for vacume. if its bush button, then it might be a bad engagement solonoid, all the way up to a split wire. as far as the system working, it has to have all the necessary requirements(vacume/power/ground)...etc

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