71LS5

Hi, I have several wires I need some help in identifying on my car. Its a 71 LS5 with AC. I actually have 5 wires or so and will start with the first pair. when these get identified i will move on an post the next one and so on until I am hopefully done.

First pair comes from the grommet on the passenger side wiper washer fluid supply to the passenger wiper. Two colors black and I think tan. The connector is a duel wire spade and I assume for both lines hot/gnd?

71LS5

Hate to stump everyone on the first set so I am providing a better picture of the connector which is certainly a strange looking type. the black wire is connected to both spade lugs. It looks like a ground wire jumper connector? The yellow wire does not appear to be part of this connector????

71LS5

Mystery connector/wire #1 Solved! I found it in my Haynes manual! Its indeed a ground wire set up for 3 points! I have also now verified the yellowish wire connection as well!

Stay tuned for the next round of guess that wire!!!!

71LS5

Ok here we have mystery cable and connector #2. This is a two pair cable from my new harness that is a duel spade type. The wire colors are brown and blue. Can you guess where these go?

TurboStitchCW

is that the connector that plugs into the wiper motor? in the haynes manual pic, its just above the cylinder looking thing on the motor. maybe?

TurboStitchCW

found this posted elsewhere on this forum 9there are some wire color errors, but the connectors show nicely and if you can trace the wires back to the bulkhead connector, it'll help)

71LS5

Turbo what year is that wiring diagram from? There is a TCS solenoid that matches the colors but I am not aware of a TCS solenoid on a 71 LS5??????

TurboStitchCW

Not sure. The original thread I found it on said 71, but idk for sure.

71LS5

I bet its the TCS but I am not sure will need to investigate further unless some one can confirm that 1971 454 LS5 with Rochester and 4 speed had indeed TCS.......

Alan 71

Hi 71,
The 71 cars have a 1 year only system called Combined Emission Control system, (CEC). The TCS was used in 70 and 72 and had a few different parts.
CEC consists of:
vacuum/electric solenoid mounted on front of the carb
delay relay mounted on firewall
reversing relay mounted on firewall
temperature sensor mounted in right side cylinder head
switch mounted in transmission that signals when transmission is in 3rd and 4th gears.
associated wiring is part of the engine harness.
Regards,
Alan

C6DuffMan

Yep, goes to the CEC solenoid on the carb. I had the two same wire questions when I got my 71.

I also have an LS5 with AC with original wiring, if you need me to track down anything.

Alan 71

Hi,
Here's the end of the solenoid that the connector in C6DM's picture plugs into.
Regards,
Alan

jnb5101

alan
you should go on 'jeopardy' and hope for a 'corvette' category!

Alan 71

Hi jnb,
The problem is..... the category would have to be "1971, Coupe, Base Engine, Radio, RWL tires".
Anything else and I'd be lost.
Regards,
Alan

71LS5

Thanks Alan and Duff!

Man that solenoid is but ugly! I am glad mine is long gone! I am all for original stuff but will not be spending any time or money on trying to configure that mess back into the car.

Looks like I will not be needing that connector anymore I will bundle it up and hid it somewhere.

Duff I just might be contacting you to trace down something but I think this thread is just way too much fun to do privately so on to the next wire!

This wire comes from the harness where the large gauge green AC line comes from as seen in the picture. This Orange line is the same large gauge indicating its a higher current line like a motor? I have two theories one its the blower step high speed line as indicated in my book/schematic or connected to the relay on the dash as I appear to be missing a line on that unit. The picture showed the relay out and all the lines to it with numbers so I can re-install the same way.

C6DuffMan

Yep, that is the fan high speed circuit. It should route over to the horn relay on the drivers side.

71LS5

Can some one shoot me a pic of this connection point (horn relay drivers side) the Duffman is referring to?

Alan 71

Hi,
Here's the horn relay.
Left side inner apron at it's rear.
Regards,
Alan

71LS5

GREAT you guys are awesome! I found the break in the line and know what I need to do on this line!

Stay tuned for the next installment of whats my line........

C6DuffMan

Can't wait. So exciting.