Chevy 3)4 ton vortex truck 199 has no power going to the starter amps are low, the starter will not. Engage electrical problem even when I jump it, voltage low, what is it

SOURCE: 1993 Chevy Silverado truck headlights high beam only works no low

dimmer switch has gone bad need to change your dimmerswitch

SOURCE: need a wiring diagram for 1994 s10 blazer 4.3 vortex

that's simple --got a printer
well free create a free log on autozone.com
next let your fingers do the walking --point and click --better than a HAynes or Chilton ---will be vehicle and engine specific --another note woth making --if the vacuum diagram ever peals off in the engine bay/fan shroud --you can get that off the site too --I'd suggest downloading and saving or print it and keep it in the glove box ---at some point you WILL need it
there are up to 4-5 diagrams available for the blazer ---print them all if need be then compare a few color coded wires and BAM --you found the right one ---easy peasy
all free
if this helps write a review--free advice and I am RIGHT
that's where I go for that stuff and seemingly only there --I don't buy their product RARELY either --I use rockauto.com
HAWK

SOURCE: truck will not go into 4 wheel drive

it sound like it is going in to 4low rang but it may only be low 2wheel power brake it a little on dirt if the tires sin in the rear it was only low ranged 2 wheel u can get this by putting it in 4low and unlocking the hubs it may be a hub prob as it is common

SOURCE: fuel pump doesn't work -

the fuel pump operates off the oil pressure switch the first 5 seconds upon starting. to test turn the key to the on position and listen for the fuel pump running. it does this to prime the pressure up and to stat the engine
if not heard replace the oil switch. the way this operates is when the engine reaches full oil pressure the computer shuts off the oil switch and turns on the fuel pump relay to continued the circuit to the pump

SOURCE: 1987 s10 chevy truck 4x4 not engaging

By the way, if that happens again (Same thing happened to me) It was inside the front diff. That vacuum actuator that sits on the passenger side that has a vacuum hose going up to it has a built in cable that plugs into the front diff. There are little springs that go bad and there is no tension on the cable. It retracts but doesn't engage the axle.

It's 3 bolts, then pry it open just enough to get access to the spring that holds the cable together. ;) That's how I fixed my problem permanently