When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
Hi I just bought a 1990. I started changing the spark plugs when I noticed 1 was covered in grease on the plug and on the wire boot. What does this mean?
Is it a white looking grease? Either way it is supposed to be there , dielectric grease , or silicon based grease to keep the plug wires from corroding.
??? That's a good one. As dawson said, it should be dielectric grease, but it's usually a somewhat clear grease, maybe just very old and dirty. And only being on one cyl. Hmmm, don't know.