[Llay R. Rac]

Originally Posted by 68gmsee

Never can have enough grounding in these old trucks. When they were new a lot of the grounding was done when the bolt to metal was still fairly new. With age, rust , dirt and moisture create high resistance to battery ground.

I have been cleaning the bolt holes and so much crud is coming out. even tho the temp probe is close to the battery to block ground i doubt the dirty hole was grounding anything. and i doubt even the cleaned bolt holes will ground sufficiently.
I think a ground strap kit is on my list of things to do.