Starter harness 61 GMC wire ID

[63chevy4x4]

I have a 61 gmc and I didnt have any underhood harnesses so i pulled from other trucks and put one togeather but I am having problems with my starter ignition power harness. Im wondering about the 5 blade plug on the passengers side, I have a light green, dark green, brown, wire and a largeer (about 10ga) red and purple wire. I have the red wire for powering my ignition and the feed from the starter and the purple to engergize it, obviously i have it scerwd up, i get nothing when i hit the key, any help would be great!

[rawraw67]

I had this same problem last week.just lock back and find my post (1964 c10 starting issue) there are a few engine harness so make sure you have the right on

[pcsparts]

Originally Posted by rawraw67

I had this same problem last week.just lock back and find my post (1964 c10 starting issue) there are a few engine harness so make sure you have the right on

The harness on the left is a Chevy harness with warning lights, not a GMC. They are altogether different. The red wire in the GMC is the main battery power feed coming into the truck off the starter. The Chevy pulls it's main battery power thru the front light harness. That is why the red wire is not there in the harness on the left (Chevy). Also the light green wire is the cold lamp wire for the Chevy with hot and cold idiot lights. The GMC harness does not have that wire as they all had live gauges. The Chevy harnesses are available new, but the GMC's are not.

Donny

[63chevy4x4]

Thanks! that makes alot more sense, I wired it up using a Chevy manual, the plug i have is also from a 61 gmc, here is a pic of it

[61K10]

make sure the purple wire is on the inside terminal (close to eng) on the solenoid. and you have power to your ign s/w.

[63chevy4x4]

So i wana run the red wire to the battery cable lug on the starter, the purple wire to the terminal to the soleniod on the starter to energize it right? and just leave the other wires be?

[63chevy4x4]

I currently have the purple as power to the solenoid, wich wire would I use to power the coil? or would it be just as easy to run a wire off the fuse terminal to run that?

[61K10]

need more info--what distributor? points? still have a ballast resistor? the coil + becomes hot with key on (test wires) the out side term on the solenoid goes to the ballast res. so you get 12 when cranking. a gmc guy should chime in here???

[63chevy4x4]

im running a mallroy unilight with a ballast resistor and power filter

[63chevy4x4]

dose an GMC guy have a diagram or a harness they could take a pic of??