New Wiring Harness/Truck won't shut off

[CoxL01]

I have a 1968 c10 that I recently replaced the harness with a new one from LMC. Everything plugged right in and the truck fired right up on the first try. When I turned the ignition off, the truck continues to run. In order to turn it off I have to pull the wire on the distributor. I have researched all over and cannot find out the culprit and don't want to start diving into a lot of stuff that might not be the issue. The engine is a 350 with HEI. Has anyone else experienced this. I am thinking it might be a faulty ignition, or I may have the HEI wire on the wrong spot in the panel. The PO had a rats nest in their is the reason I changed the harness. Any help would be greatly appreciated.

[Wrenchbender Ret]

It is usually caused by feedback from the alternator. If you are using an internal regulator alt. the inciter wire coming off the ign switch needs to have a diode in it.

[LockDoc]

Originally Posted by CoxL01

I have a 1968 c10 that I recently replaced the harness with a new one from LMC. Everything plugged right in and the truck fired right up on the first try. When I turned the ignition off, the truck continues to run. In order to turn it off I have to pull the wire on the distributor. I have researched all over and cannot find out the culprit and don't want to start diving into a lot of stuff that might not be the issue. The engine is a 350 with HEI. Has anyone else experienced this. I am thinking it might be a faulty ignition, or I may have the HEI wire on the wrong spot in the panel. The PO had a rats nest in their is the reason I changed the harness. Any help would be greatly appreciated.

What terminal do you have the +12v wire from the HEI plugged into on the fuse panel. It should be on the "IGN UNFUSED" terminal. Also, do you have a Yellow wire connected to the "R" terminal on the starter?

LockDoc

[CoxL01]

Originally Posted by LockDoc

What terminal do you have the +12v wire from the HEI plugged into on the fuse panel. It should be on the "IGN UNFUSED" terminal. Also, do you have a Yellow wire connected to the "R" terminal on the starter?

LockDoc

After getting some time to go back out and check, I found that the +12v wire was plugged into a continuous hot spot on the fuse panel. Changed it and that solved the problem. Thanks for the help LockDoc. Now I gotta find out how to get the fuel guage working which is the last issue on this c-10.

[LockDoc]

Originally Posted by CoxL01

After getting some time to go back out and check, I found that the +12v wire was plugged into a continuous hot spot on the fuse panel. Changed it and that solved the problem. Thanks for the help LockDoc. Now I gotta find out how to get the fuel guage working which is the last issue on this c-10.

Here is an older thread that may help you out on the gauge.

http://67-72chevytrucks.com/vboard/s...d.php?t=598924

LockDoc

[CoxL01]

Thnx...I will check that out when I get some time...