1994 Chevrolet K1500 - Answered Questions & Fixed issues

Sounds like the problem that I had with my '94 chev sub k1500, twice! The first time it was due to a blown fuse. Now I carry a spare 20A fuse when I go off-road. The second time the electrically controlled/heated, fluid filled actuator mounted on the front diff failed. I now carry a spare actuator when I go off-road. the actuator is powered when the switch on the top of the transmission is energized. I have had no problems with that switch, or the connecting wiring.

K1500 , why skip telling this fact. K2500, k3500 ? we can't just guess. we can not just drive the this truck and know. impossible. post all driving evidence first.are you on ICE ? no road conditions told nor what transfer case option it has. to fix 4wd, one must know the drive train. if not there can be no good help.blind transfer case full Dexron (max#) ATF fluid>? not all leaked or leaking out. NP205?? part time or NP208 part time,, not for pavement lacking ICE NP241 full time 4wd BW 1370, BW4401 and BW4470(borg warner) 6boxes used, the tag on the box is what it is.,for sure. the 205 is for off road only step one, under car rear of TC (transfer case) that tag learn to know the tag model 207, top line, and line 3 date 1986, 261 is 2.61:1, 4Low ratio.

You tore something off underneath. You need to get it up on a lift.

You'll need to look for fuse number 13. If you want help locating it, follow the link: https://knigaproavto.ru/shemy/en/gmc/yukon/835-1992-1994-k1500-chevrolet-blazer-and-gmc-yukon-fuse-box-diagram.html

You will find the fuse box diagram on the the inside of the fusebox cover. It's also available at this link: https://www.autogenius.info/gmc-sierra-mk1-1993-1994-fuse-box-diagram/

Would it be in the engine compartment? Comes from the factory

maybe crank shaft sensor is failing

its called the fusiable link the orange wire coming from the bat terminal if this wire is soft and easy to bend it is burnt and link is bad wire must be cut out and replaced . do not put a regular wire or the next time it will burn somthing costly replace with 30 amp inline fuse or new fusiable link

Generally, Which system had the most pressure when the leak occurred? If the oil system had the most pressure, at that time, then it makes sense that you could get oil in the cooling system with no antifreeze in the oil. Or vise-versa. There may be other variables? Just my 2 cents.

You have a mechanical issue with the transmission. Have a local shop diagnose that first.

Are you low on transmission fluid?

possible harness and connections transmission could be good but wiring to servos/ solenoids different

You may have confused more than one run thru the firing order double check your connections maybe it's not locked onto the plug

Replace Fuel pump in tank

need vavls seals

Is this a automatic transmission

Vacuum leak? Check all vacuum lines

I would replace the idle air control valve, or at least check the connector and wiring very carefully. If you have a scanner, go to live data when the engine is warm to see if you can read what the valve is doing. There is a test procedure at the link below. Repair Guides Fuel Injected Electronic Engine Controls Idle Air Control...

Your 20 amp fuse will not blow if glowplug wire shorts. each plug draws 15 amps which is 120 amps total.I think there are in line fuses for them. Try to wring out where each output from the fuse goes, disconnect all and reconnect one at a time till it blows.That should point to your problem process of illumination! Good Luck!!

fuel filter inline some were If you need further help, reach me via phone at https://www.6ya.com/expert/scott_8b3f0f0fc5f566a7