Originally Posted by RamTech
What was the leak down percentage on #6? Have you swapped the plug an wire from #6 to see if the misfire follows either component?
Was about around 7% ish. The rest of the cylinders were all within a 5-10 % range. I've found anything above 10% on the other engines I've dealt with to be a poor valve.
I have not switched any plugs. I'll be going at it with the truck in the next 30 mins. Will be going over my firing order again, cleaning spark plugs of any deposits, and starting with the basics. I'm also going to check my fuel pressures in the next few days, see how everything is on that front.
Truck is driven everyday as it's currently my only vehicle - other than this shudder/vibration it runs fine! At idle you can feel what seems to be a small miss and that's it. Its really pestering me.