Mystery Wires in Engine Bay - Forums - Official C3 Vette Registry

SPONSOR AD

Support our Vendors! | Advertise Here

Topic: Mystery Wires in Engine Bay

in Forum: C3 Electrical

Already a Member?
Login
Not yet a Member?
Register for Free!

Mystery Wires in Engine Bay (1/8)
7/9/16 11:57pm

JoeHower
Former Member
Send Private Message

Long Beach, CA - USA

Vette(s):
1981, Grey, six-speed tremec

Joined: 2/26/2016
Posts: 11

I have an 81 Vette, in which a Tremec 6 speed was transplanted. While underneath, I found 2 wires that were cut and sitting under it. THey are dark blue and green, and appear to be original. Then went up to the top of the firewall, to a connector. I have looked through wiring diagrams and manuals and it does not look like they went to the old transmission (or anything else I can find). Any ideas would be appreciated.

______________
http://www.C3VR.com/member_uploads/33901_34000/33944/DSC_0590201816103242r.jpg

Quote

Our Sponsors help support C3VR

Re: Mystery Wires in Engine Bay (2/8)
7/10/16 1:48am

73shark
Limited Member
Send Private Message

Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 866

We the original transmission auto or manual?

______________

1973 L-82 4 spd

Quote

Re: Mystery Wires in Engine Bay (3/8)
7/10/16 9:32am

Adams' Apple

Lifetime Member
Moderator
Send Private Message

Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 20128

Prolly speed sensor wires to the cruise control. The TCC connector would have tan, grey, and black wires.

______________

Joel Adams
C3VR Lifetime Member #56
My Link

(click for Texas-sized view!) NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Quote

Re: Mystery Wires in Engine Bay (4/8)
7/10/16 1:47pm

JoeHower
Former Member
Send Private Message

Long Beach, CA - USA

Vette(s):
1981, Grey, six-speed tremec

Joined: 2/26/2016
Posts: 11

The original was a 4-speed manual, no cruise control.

______________
http://www.C3VR.com/member_uploads/33901_34000/33944/DSC_0590201816103242r.jpg

Quote

Re: Mystery Wires in Engine Bay (5/8)
7/10/16 2:42pm

Since it's a manual, I suspect it might be the backup lite switch. Don't know of any other electrical connections to 4-speed.

______________

1973 L-82 4 spd

Quote

Re: Mystery Wires in Engine Bay (6/8)
7/10/16 9:31pm

gtr1999
Limited Member
Send Private Message

CHESHIRE, CT - USA

Vette(s):
1969 350 4 spd drop top 1972 350 auto coupe

Joined: 5/2/2016
Posts: 64

73shark said: Since it's a manual, I suspect it might be the backup lite switch. Don't know of any other electrical connections to 4-speed.

I agree that is what it sounds like, without a wiring diagram in front of me. I recall the older cars had green and pink? wires

______________

Quote

Re: Mystery Wires in Engine Bay (7/8)
7/11/16 1:03am

JoeHower
Former Member
Send Private Message

Long Beach, CA - USA

Vette(s):
1981, Grey, six-speed tremec

Joined: 2/26/2016
Posts: 11

Well, I think that is it. I just put the car in reverse and checked, and no reverse lights. Thanks guys!

______________
http://www.C3VR.com/member_uploads/33901_34000/33944/DSC_0590201816103242r.jpg

Quote

Re: Mystery Wires in Engine Bay (8/8)
7/22/16 4:45pm

JoeHower
Former Member
Send Private Message

Long Beach, CA - USA

Vette(s):
1981, Grey, six-speed tremec

Joined: 2/26/2016
Posts: 11

Thanks again, guys. I was able to buy a pigtail, hook up the wires, and now I have reverse lights.

______________
http://www.C3VR.com/member_uploads/33901_34000/33944/DSC_0590201816103242r.jpg

Quote

Our Sponsors help support C3VR