tach. question

[71K20chevy]

You should have two grounds coming off the cab, that get sandwiched in the valve cover bolts. If you don't have those, then yes, you need a GOOD ground from the engine to the frame.

I ran a couple grounds from the frame to the cab, and a couple from the frame to the bed. Made my lights a lot brighter.


If your fuel gauge is reading past full, that means either there's an open connection somewhere, or it simply is not grounded.


I'll bet that grounding solves a lot of your problems, as it did for me