Question about 1993 Chevrolet S-10 Blazer

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1993 Chevy Blazer Mileage scrambled and 4 hi not working.

Gauges in dash cuts in and out..Checked fuse #4 which is for the guages, and found no problem with the fuse..Any other suggestions PLEASE!!!
I have a similar problem, thought I got it fixed yesturday. Bought a new actuator for the 4 wheel drive. Finally found where it was located. pulled the battery, installed the new actuator, but the problem wasn't solved. The old actuator had a good vacuum seal, so I installed the old one. Put the battery back in, Then tried the 4x4 and it engeged in 4 hi. that besides the mileage(that would flicker) was working. drove it around the block and it worked. then today went out, had 4 wheel high in and worked. Ran around town turned it off then needed it in going down this road. same problem again. The 4 hi would not engage and the mileage was all scrambled up. 4 low will lock and work, but not 4 high. Any solutions? Thanks Garrett.
I also had removed the small sylinoid on the top of the transfer case after all that the 4x4 High worked. then next day after warming up, didn't.

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Ok well its hard to do without seeing it. but here goes. if it has electronic dash then it sounds like you either have a faulty conection on you wires to it or your cluster is fubared. best way is if ya have a friend with the same truck swap out and see if that helps. if ya dont have a buddy with one then check your wires on the back of the gauages. might have some corrotion on the little brass whire inlets on the clusters. if that doesnt work ya prob need new cluster. as for the 4x4 will sounds like an intermitten problem.if ya have a good seal on your actuator on the top of the transfer case check the vacume lines that run to it for will have vacume. does your truck run a little ruff when on idol? sounds like a vacume leak of some sort. it isnt the transfer case because it did work so it must be something to do with the vacume. take out acutaor again on the transfer case and watch as someone puts in 4 hi and 4 low ya should see the ball bearing on the bottom go up and down.has the truck been sitting for awhile? sometimes the transfer case gets sticky without being used offten. make sure your fluid level is up. there will be a bolt on the top side of transfer case that will alow you to feel for fluid. check with pinky. if you can feel the fluid it is up.might be best to replace fluid. hope that helps. if ya need to get better info add on messenger and i will talk ya through it. hope this helps. i know these trucks very well. hope this helps!

Posted on Dec 22, 2008


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