Gen1 - Driver valve cover - small screw hole in bottom front. Looks like the same screw holes that spark plug wire harness attaches to. They are in the center and right bottom and in 3 spots on passenger cover.
But, this one is the only one without anything screwed into it. It's just a hole and it doesn't look like anything has ever been screwed into it. I took pictures before I changed anything and nothing is screwed into it. What is it for? Should it be plugged wth a screw? Here's a pic.
Who has their car near them? Can you go look?
But, this one is the only one without anything screwed into it. It's just a hole and it doesn't look like anything has ever been screwed into it. I took pictures before I changed anything and nothing is screwed into it. What is it for? Should it be plugged wth a screw? Here's a pic.

Who has their car near them? Can you go look?