Long time no post - good to see you all again...
This could probably go in one of the general forums but since we all have one I figured I'd just keep this in the family - besides the gassers wouldn't understand what in the world I was doing cleaning that...
So I was out in the garage cleaning the MAP sensor and

there goes the screw landing some place soft - not making it to the garage floor. After 30 minutes of wiggling harnesses and feeling around in places you can't see. I figured it must have landed on the skid so I go to remove it. I bought the CRD used and have never removed it - next oil change was going to be the axles. Starting on the left rear bolt I give it a turn and it just starts spinning. So what's on the other side of this bolt? I don't see a way to get to a nut so I assume it's a broken nut insert or flag nut. Any ideas on what to do next? Sawzall?
BTW after cursing at that apparently broken nut there was the shiny MAP screw just above the starter laughing at me!
Regards, Rabid