uuuuughh... intermittent problems are sooo frustrating to fix!

But something tells me I've heard of it before, just cannot remember what was the solution...

__________________
1985 190D 2.2l Sold-to Brother-in-law
1996 Mustang 3.8l -"thinks it's a sports car"
1988 Grand Wagoneer - Sold (good home)
1995 Grand Cherokee Ltd -"What was I thinking??!!"