What Is This And Why Is It Trying To Burn up ?? - Page 2 - Chevelle Tech
Electrical & Wiring Troubleshooting electrical problems.

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post #16 of 19 (permalink) Old May 2nd, 14, 7:45 PM
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Joe
 
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Re: What Is This And Why Is It Trying To Burn up ??

Okay, okay.

I highly suggest tracing this out. The white connector is not factory. I take it you are not the original owner?

What ignition system do you currently have in the vehicle, and how does it get it's power?

Nothing should be getting hot unless there is a current draw thru it, so something is drawing current, whether it is to a "device" or a short to ground.

1971 utilizes the CEC (Combined Emissions Control) system. The only wire that would be getting "warm" would be that brown wire with the white stripe. That is the resistance wire that originally fed currently limited power to the time delay relay on the firewall. If the other end of that is grounded or still connected to "something", that would be heating up the harness as well with the key "on". The time delay relay is NOT the same as the anti-dieseling relay only found on AC cars for '71. The blocking and anti-dieseling relay were mounted inside the car on the dash carrier frame. I could write a book on the CEC system for '71, but I don't have time for that now I doubt that is your issue unless someone creative has used factory wires for their own means (like the brown/white I described above).

"Pink" is GM's designation back then for switched igntion power. So if you have 12 volts on one side, you need to find the other "side" to see what is connected causing the draw and the power dissipation (the heat).

-If you don't stand for something, you'll fall for anything.
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post #17 of 19 (permalink) Old May 3rd, 14, 4:38 PM Thread Starter
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Re: What Is This And Why Is It Trying To Burn up ??

Ok..the factory yellow wire was connected to the white plastic connector then the two non factory black wires went back into the car because someone wired in a small toggle switch up under the dash as a theft deterent apparently.

So it would cut voltage from the coil. I won`t need the yellow wire anyway as I`m using an HEI.
So now that that`s sorted out, I still need to find out what the pink wire that connects to the factory coil is for and why it was getting hot.

Steve
68 BISCAYNE 4060lb
468-9.4:1
1.76 60FT Drag Radials
11.69 [email protected] 116.30 MPH
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post #18 of 19 (permalink) Old May 3rd, 14, 6:23 PM
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Joe
 
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Re: What Is This And Why Is It Trying To Burn up ??

Steve,

Yup, at this time, it's just a matter of playing detective.

Don't ya just love former owner modifications?

-If you don't stand for something, you'll fall for anything.
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post #19 of 19 (permalink) Old May 4th, 14, 6:05 PM Thread Starter
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Re: What Is This And Why Is It Trying To Burn up ??

Quote:
Originally Posted by Coppertop View Post
Steve,

Yup, at this time, it's just a matter of playing detective.

Don't ya just love former owner modifications?
Sure, especially wiring problems..which I absolutely loath

I disconnected the yellow wire from the 'S' terminal on the starter solenoid and the pink wire doesn`t get hot anymore.

The pink wire has juice when in the 'Run' position. I traced it to the junction box and it looks like it goes to the A/C fuse.

Steve
68 BISCAYNE 4060lb
468-9.4:1
1.76 60FT Drag Radials
11.69 [email protected] 116.30 MPH
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