Possible scorching on plug wire

[Devin]

Hi all,

I've been digging into my 90 and its various problems and found some dark spots on one of the plug wires at the coil pack. Does this look like maybe it wasn't making a good connection? Or is the coil pack having issues?

 

[rubydist]

pics pls

 

[Devin]

Hah, my son was talking to me and distracted me...

 

[Jbeck]

Hah, my son was talking to me and distracted me...

View attachment 14525

That does not look like it is making connection at all.....bad corrosion and the black spot looks like a possible arch scar....replace those wires with brand new...coil pack is probably good, they can take a beating

 

[luigisho]

Yeah, that looks like ****. Can't say anything about the coil pack as I can't see it, but the wires need to go.

 

[Devin]

 

[Jbeck]

View attachment 14540 View attachment 14534 View attachment 14535 View attachment 14537

Oooooooooo.......yeah, I would replace that coil pack too.....looks like that plug had water in it to me!

 

[rubydist]

I would start by cleaning the contact at the end of the wire and the contact in the coil pack, since I am cheap and don't like to spend money I don't have to. I think a good cleaning will make that all fine.

 

[BaySHO Performance]

Yes, simply clean the coil pack ports. Those green spots look like oxidized copper as a result of moisture in there.

 

[Devin]

Any suggestions on what can fit it there?

 

[BaySHO Performance]

A screwdriver to scrape the bottom. A piece of emery cloth wrapped around a small Phillips screwdriver for the walls.

 

[luigisho]

Any suggestions on what can fit it there?

Little dremel wire brushes?

 

[BaySHO Performance]

Too big.

 

[Jbeck]

Phillips screwdriver and scotch bright pad....you might be able to cut the scotch bright pad to fit down in there and then just turn it back and forth.....if not then use the Phillips screw driver to get the scotch bright pad down in there