Well I had a minor set back this week. On the way to school, about a mile up the road from home, I heard a nasty sound. I thought it was my timing belt, but the truck was driveable. It turns out I was close as my UltraGauge had a P0305 code: misfire on cylinder 5 (my UG is in my Corolla, so I couldn't check until I got home). Generally you would think with new spark plugs the culprit would be the ignition coil and/or wire. Well when I took the coil off, I decided to pull the plug, just in case. I'm glad I did! The node (or center electrode) completely broke off! Now I'm nervous about replacing the plug. Where is that node? I don't want to cause further damage to the cylinder/piston.
Here's the broken plug:
Anyway, non-aerodynamic issues, but aerodynamics obviously don't matter if the truck isn't going anywhere.
