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Chevrolet S10 Blazer Questions

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i have a 93 s-10 blazer 4.3 vortec high output,1 of the screw
holes is stripped out,1 screw holding the cap on.if there are
any helpfull steps to replacing,the distributor i could use.i could do myself,before it goes to my mechanic .thanks
I need to know why when I put it in 4x4 Low, it will not move when put back in drive.
replaced fuel pump, plug wires plugs, replaced distuber, distuber cap, still skiping.
I have to back up before my 4x4 engages/
THe digital dash is not working, this may be the problem. Would like to check it.
We tried a fuse, but thats not the problem.
I am having trouble removing the cylinder head.Does each come off on its own? Or do they come off together?
I have a 1991 S10 Blazer 4x4, with a 4.3L V6.. it has 193000 miles on it, but it
has been well kept up. It was running just fine until one day recently I was
drving down the highway and it started jumping. Then a few days later the
blazer, began popping and jumping very badly. It wouldnt stay started if I took
my foot off the gas. Now it has a VERY rough idle, where the entire truck
rattles and shakes..I cannot start it and move it, because just as soon as i
take my foot off the gas, it begins to sputter then dies.In the middle of all
this it also overheats, and smokes after running for ten minutes or so...Which
it never did before the sputtering, and jumping,etc... I have had this vehicle
for two months and it never did this until just a couple days ago.It was a
strong running truck. I would really like to fix it because it is my only
transportation. I have no idea what it could be. I know that it was given an oil
change, but we have since had to have more oil put in it beca
use the oil filter housing has a hairline crack in it which causes it to leak..
The only other problem I have is a faulty gasket on the transmission pan... But
it was runnning great until all of this came about...

We have replaced calipers, rotor, Master cylinder, brake line, pads. Still locks up. Disconnected the ABS and that seemed worse. I don't know what else to do. Please help!
it wont even open. It is stuck/jammmed...my question is how do you get it opened?
i changed the plugs wires and cap all cyilenders have compression i didnt try the coil yet but what els could it be? thanks.
i changed the plugs wires and cap and all cylinders have compreshin so im not sure y it dont have full power can someone help thanks
Some times it goes three or four days with out a problem. I am not really sure where to start. Any help would be nice. Thanks.
hello just wondering if someone can tell me if 148000 miles is alot for that car and if anyone has had one with close to 200000 miles just want to make sure i get a good car.
4.3 TBI s10 runs very rich. Changed O2 fp-regulator and TPS. EGR is good. Ideas?
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