This is what would be going through my miniaturized, shriveled up brain:
Hmmm. Let's see now. It was working before I installed the new
oil line and it's not working now. What has changed? Maybe the new line is pinched or crimped. Maybe it came undone and is spraying
oil on the street - or worse yet, all over my engine compartment. Maybe the line or the gauge got some gunk in it - sealer, teflon tape. I better get started looking. Wonder where the tow truck went.
Just musing.
Brian