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#1 |
Wrench Wench
![]() Join Date: Apr 2008
Location: HERRIN, IL
Posts: 93
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Where does this wire belong?
I replaced my timing chain,oil pan gasket, etc. this weekend, and while replacing fly wheel cover I noticed a small lt. green wire with a round rubber boot hanging down on pass. side of tranny. There is so much oil and dirt covering this area I thought I'd ask where exactly this plugs in, if I need it (it has been out for a long time by apperances), and what is it? BTW it's a TH350.
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If everyone had good taste, who would buy all the FORDS? ![]() Women join us!! BUSTED KNUCKLE BABES ![]() "Face it girls, I'm older and have better insurance" -Fried green tomatoes Last edited by SOUTHERN917; 12-13-2008 at 07:34 PM. Reason: left somthing out |
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#2 |
Senior Member
![]() Join Date: Dec 2006
Location: Studio City, Calif.
Posts: 2,873
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Re: Where does this wire belong?
Sounds like the TCS or transmission controlled spark. I believe there was a switch on the trans. with one wire going to it. The system was an early attempt at emisions improvement. In lower gears you would not get any distrib vac advance,and lots of folks disconnected this system.
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'69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme. |
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#3 |
Wrench Wench
![]() Join Date: Apr 2008
Location: HERRIN, IL
Posts: 93
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Re: Where does this wire belong?
Thanks, I'll live without it!
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If everyone had good taste, who would buy all the FORDS? ![]() Women join us!! BUSTED KNUCKLE BABES ![]() "Face it girls, I'm older and have better insurance" -Fried green tomatoes |
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#4 |
Registered User
Join Date: Apr 2002
Location: New Carlisle, Ohio,USA
Posts: 1,404
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Re: Where does this wire belong?
Sounds like back-up light wire for the 4 spd. trans?
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#5 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: Where does this wire belong?
The four speed back up light had two larger wires to it (one light green/one dark green). The back up wiring for the four speed also routed up from the passenger's side of the transmission.
The small green wire is more than likely what WorkinLonghorn said. Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC Last edited by JimKshortstep4x4; 12-14-2008 at 06:55 AM. Reason: spelling |
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#6 |
Wrench Wench
![]() Join Date: Apr 2008
Location: HERRIN, IL
Posts: 93
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Re: Where does this wire belong?
I have back up lights, and it is caked with dirt/oil so I know it's been out of service for a while. Thanks for the responses.
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If everyone had good taste, who would buy all the FORDS? ![]() Women join us!! BUSTED KNUCKLE BABES ![]() "Face it girls, I'm older and have better insurance" -Fried green tomatoes |
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#7 |
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,217
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Re: Where does this wire belong?
Could it have had a TH 400 at one time? They had an electrical kickdown with a connecter like that. It also may have gone to an oil pressure light. Sometimes it falls down from the back of the engine & apears to go to the trans.
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#8 |
Wrench Wench
![]() Join Date: Apr 2008
Location: HERRIN, IL
Posts: 93
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Re: Where does this wire belong?
It has always had the th350. It was a 2 owner, Father then son, then me. They kept every scrap of paper/receipt/oil change etc. for 40 years. It sat for almost 3 years before I convinced him that I would take care of it and bring it back to life if he would sell it to me. He almost cried when I picked him up for that first ride after I got her going.
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If everyone had good taste, who would buy all the FORDS? ![]() Women join us!! BUSTED KNUCKLE BABES ![]() "Face it girls, I'm older and have better insurance" -Fried green tomatoes |
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#9 |
Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: Where does this wire belong?
Workinglonghorn is correct its part of the old emissions system. That switch operated under pressure from the trans and controlled spark advance and it often leaked. I removed mine and pluged it.
Last edited by dwcsr; 12-14-2008 at 03:00 PM. |
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#10 |
Wrench Wench
![]() Join Date: Apr 2008
Location: HERRIN, IL
Posts: 93
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Re: Where does this wire belong?
Does anyone have a pic of this area? I want to make sure the hole is plugged.
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If everyone had good taste, who would buy all the FORDS? ![]() Women join us!! BUSTED KNUCKLE BABES ![]() "Face it girls, I'm older and have better insurance" -Fried green tomatoes |
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#11 |
Senior Member
Join Date: Nov 2000
Location: WI,USA
Posts: 495
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Re: Where does this wire belong?
This may help,http://67-72chevytrucks.com/vboard/s...iring+diagrams Will take a minute or so to load!
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69 Lwb C-10 402/700R4 70 Lwb C-10 250/3pd Wisc. Last edited by mikeoj; 12-14-2008 at 07:47 PM. Reason: wrong info |
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#12 | |
Need a bigger hammer..
Join Date: Feb 2007
Location: Escondido,CA.
Posts: 280
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Re: Where does this wire belong?
Quote:
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1968 GMC 3/4 LWB fleetside Custom Camper 2018 Silverado High Country 2500HD Duramax 4X4 |
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#13 |
Senior Member
Join Date: Nov 2000
Location: WI,USA
Posts: 495
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Re: Where does this wire belong?
I have corrected the link,sorry.
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69 Lwb C-10 402/700R4 70 Lwb C-10 250/3pd Wisc. |
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