melted a glow plug wire

[Brutusdog]

So, I completed the fuel filter replacement today on my M1009. Switched to a Napa spin on thanks to the instructions provided by other SS readers. Works great. Started right up, no leaks, no problems. Turned the truck off and went on to other tasks.

The wife got home, asked what I had beed doing all day. Showed her and started up the truck. After about 20 seconds, engine starts smoking. Quickly shut it off. After inspection, the wire going to the glow plug right under the filter looks like the insulation fried.

After about 20 minutes, of doing other stuff, I started it up again. No problem, no smoke, seems fine other than the insulation messed up on the wire. It was getting dark and I had other obligations so I have done nothing else yet.

Any ideas? Was it related to the filter swap? Maybe I dripped fuel on it causing the problem? Maybe it got pushed up against something hot? Coincidence?

 

[mudman]

"For every action, there is a reaction!! Coincidence only!! Of course it only happens when the ole lady wants to see!!

 

[Warthog]

The glowplug wires are fusible links. They are designed to protect the system.

 

[mistaken1]

...... so there is a good possibility that glow plug wire is now open and will not power that glow plug.

Sounds like something happened that allowed a short circuit from that glow plug lead to the chassis/block causing the fusible link to open.

 

[Brutusdog]

I did notice after the smoke that the wire was up against the engine. If I spilled a little diesel, maybe that led to the short. I guess I now need to replace that particular wire. Is that part something Napa would be able to get? I have never messed with the glow plugs, how hard is that to do?

 

[O.D. Fever]

I agree with Mistaken, the glow plug shorted out and fried the wire. I had one do that and put on a new wire, smoked again. One new plug and another wire, all is fine.

 

[bshupe]

Its amazing how much magic smoke goes into one of these trucks.