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Old 06-22-2003, 02:11 AM   #1
orange72350
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Cant Figure Out What This Stupid Wire Is For!!!

I recentley yanked out my stock 350 to swap with a re-built. im trying to sort out wiring in the engine bay. it was a rats nest from the last guy. Theres a black wire, with a cap on the end of it. The inside of the cap has a female spade connector in it. it runs in the same group of wires as my yellow for my ignition, and my two starter wires. its not a tach, and it isnt real long. I figure its gotta be a sending unit of some sort, but i cant figure out what its for. I dont remember taking it off the old motor, but its not full of oil and road crud, so it was obviosly hooked up recentley. Could somebody please bail me out before i just cut it off and realize later that i made a mistake!! Thankx for all yer help

Dale
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Old 06-22-2003, 03:57 AM   #2
Als454
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I don't have my truck here right now so I can't check. It doesn't go to the heater blower motor does it?
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Old 06-22-2003, 04:11 AM   #3
TERRYP
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look where it goes thru the firewall, and look in a Haynes manual to see what it is for.
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Old 06-22-2003, 07:04 AM   #4
blue_69
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sounds like the reverse light switch wire that would plug into a switch on the tranny. On a 4 speed its on the top just foward of the shifter dont remember what side though.

jason
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Old 06-22-2003, 07:39 AM   #5
da-burb
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if you have an auto it is the TSC presure switch harness. On the right side of your tran towards the top you will see it with 1 spade terminal. It lets the emissions equipment function when the tranny is in 3rd gear.
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Old 06-23-2003, 01:07 AM   #6
orange72350
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i dont think it goes to the tranny. it goes back through the firewall, and isnt very long. i dont wanna trace the harness 2 see what its for, but i dunno.
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2003 yamaha raptor. Stock, but it still hauls!!!!

2000 skiddo mxz 700. Camoplast 1.5 inch track, jaws twin pipes, b+b can, custom built and weighted clutch, wiseco piston, high comp heads. its very fast. wow.

72 c-10 longbox. Bright Orange. Brand new 350, rv cam, performer intake, qjet, headers, 2 1/2 inch exhaust into hooker areo chamber mufflers. Body work coming soon.

"dont let yer mind wander, its to little to go places by itself."

"Forget the herse, cause i'll never die"-ACDC Back In Black

"If It's To Loud, Yer Just Too Old"

"I Love Anything Fast Enough To Do Something Stupid In"

"Instant idiot, just add beer!!""
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Old 06-23-2003, 02:09 AM   #7
alta-aj
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How about the temp sending unit?

AS above.
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Old 06-23-2003, 02:38 AM   #8
jef5150
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i think da-burb is correct,my wiring diagram shows black wire,(auto) for "asm TCS switch"

Last edited by jef5150; 06-25-2003 at 06:26 AM.
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