ok. i'm fed up with this truck - i'm about to have a breakdown. i've had to borrow a vehicle for 2 weeks and i absolutely have to have it running tomorrow (tuesday). i got all the wiring swapped in and everything hooked up. turned the key to start the rig, and got nothing from the starter.
so, here's absolutely everything i did to try to make the starter work, as well as all the things/details i noticed. i hope this helps you diagnose my problem.
- truck is an '83 6.2 diesel, stock with auto trans, but now has a 465.
- steering column is from an '85(?) suburban, gas with auto trans.
- wiring harness is from an '86(?) 3/4 suburban.
- starter is for a '95 6.5L diesel.
ok, so i swapped in the wiring harness and everything looks to be the same on this harness as my last one. everything hooks up properly and so on.
the wiring on the column has 2 wires more than my wiring harness. it has a beige color and a green one, which don't connect to anything on my current wiring harness. these wires are also not found on my '83 steering column. in addition, this column has the wipers on the blinker lever, so there's an extra set of wires that do not connect to anything, as the current wiring harness has the connections for a dash-driven wiper system.
when i turn the key to the "on" position, my guages work, as do my headlights. my left blinker blinks at a normal rate, the right one blinks slowly. 3 of my 4 headlights work, but they're always on and dim. no real difference between brights and lows.
when i wiggle the shifter for the auto trans on the column, i can see it affecting my power, as the volt meter drops significantly. this was when it went through reverse and the lights in the back came on. when i unplugged that switch, this did not continue to happen.
when i turn the key forward to hit the starter, the "brake" light on the dash comes on, dropping the voltage very slightly, but only enough to make you think it's the light - not an attempt to turn the solenoid on.
so we connected a secondary key cylinder to the solenoid and when i turn the key in that one, it turns the engine over like it normally should. infact, we even got the engine fired up, but it needs to be shimmed because the starter wouldn't disengage from the flywheel. HOWEVER, i DO NOT want to have to use this to start the truck on a permanent basis.
i am nearly certain that the fusible links on the two wires that go to the positive (large) peg on the starter solenoid are good because when you put power to that connection (those 2 wires go to one connection) the dash guages work.
now i don't understand how that wiring works, so the following statement may be pointless: i suppose if the one that sends power from the ignition key to the solenoid has a burned out fusible link, it could ruin the starting circuit.
what could be my problem that the ignition in the column isn't starting my truck???
please please please tell me how to fix my truck!!!!!!!!!!!!!!!!!


