2000 4.3L 4-door 4x4 stuck in 4-Hi, help!
Im a newbie to my blazer. Ive had it 2 months or so. I bought it from a guy I know, and it has been well taken care of. It has 74,000 miles on it. When I got it 2 months ago, I engaged 4WD just to test my understanding of how to engage it. It worked perfectly fine, and I never used it sense.
Today while driving on the highway, my service 4WD light came on. I pulled over checked some quick basic things that I could, and things seemed fine. I arrived at my destination, and decided to shut the car off and turn it back on. At this time the "service 4WD light" was not on. I switched from 2-Hi to 4-Hi and it engaged fine. However it will not swtich back to 2-Hi. I push the button and nothing happens. No blinking lights, no nothing. Its as if Im not pushing the buttons at all. Im an electrical engineer, so if I have to dig into testing continuity on the switches themselves to see if theyve gone bad, that will be no problem. I just figured Id ask some people familiar with these trucks if there are "common" problems in this area, and if there are any tricks in getting my truck back into 2-Hi. I dont wanna drive it 100 miles home on 4-Hi because I believe that to be bad (I know very little about 4WD, and this is my first 4WD vehicle). What are my options for being out of town on the weekend? |
RE: 2000 4.3L 4-door 4x4 stuck in 4-Hi, help!
wanted to add:
I have the Auto 4WD button if that matters. And does the panel that holds the 4WD electronic buttons just pop out without having to take anymore of the dash apart? |
RE: 2000 4.3L 4-door 4x4 stuck in 4-Hi, help!
Try checking the fuse (#15 instrument panel) are any of the indicator lamps lit on the buttons? They won't be if that fuse is blown. Yes with a bit of care the switch panel comes out of the dash, start at the top use a small screwdriver to start and use your fingernails so you don't scratch the dash. (or fingers and a holding screwdriver) The fuse powering the module itself is a 20A in the panel under the hood (marked ATC toward right edge) check there too.
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