GP harness question

Reply Subscribe

Thread Tools

Search this Thread

Dec 17, 2012 | 06:46 PM

mrberg89

Thread Starter

Junior User

Joined: Nov 2012

Posts: 53

Likes: 0

GP harness question

So I was putting new ends on the glow plug harness and decided to test the continuity of the harness. Disconnected all the connectors. Between the bullet connectors and the z bar terminal on the relay I had good continuity.

I then decided to check between the bullet connectors and ground and found that they all had some continuity to ground. I then checked between the z bar terminal and ground and had continuity there as well.

I found out that if I removed the green wire from the z bar terminal, that I would have no continuity between the bullet connectors and ground.

What gives? Is this normal? I figured there should be no continuity between the bullet connectors and ground.

Thanks

Dec 18, 2012 | 02:25 PM

FORDF250HDXLT

Fleet Owner

Joined: Jul 2006

Posts: 20,389

Likes: 849

From: Mi'kma'ki

for ground,check between battery and ground terminal not the test terminal (z bar.)

Dec 18, 2012 | 07:28 PM

mrberg89

Thread Starter

Junior User

Joined: Nov 2012

Posts: 53

Likes: 0

I wasn't checking for ground at the relay though. I was checking to see if my glow plug harness has a short to ground. Should it?

Dec 18, 2012 | 08:48 PM

FORDF250HDXLT

Fleet Owner

Joined: Jul 2006

Posts: 20,389

Likes: 849

From: Mi'kma'ki

Quote:

Originally Posted by mrberg89

I wasn't checking for ground at the relay though. I was checking to see if my glow plug harness has a short to ground. Should it?

no,you don't want the wires that supply power to your plugs grounding out.

"So I was putting new ends on the glow plug harness and decided to test the continuity of the harness. Disconnected all the connectors. Between the bullet connectors and the z bar terminal on the relay I had good continuity. "

your test passed there.

your next test will be the ground as mentioned,then the voltage supply test at the test terminal.
check this out for the complete run through:
https://www.ford-trucks.com/forums/1...low-plugs.html

Dec 18, 2012 | 10:24 PM

mrberg89

Thread Starter

Junior User

Joined: Nov 2012

Posts: 53

Likes: 0

My problem is I have continuity between every glow plug connector and ground. It only goes away if I remove the green wire.

I should disregard this and go on to the next test?