Dude, you're more stubborn than I am and that's saying a lot. Did the guy figure out what was plugging it up? Excellent drill down to the fix! You should get a medal.

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Jesse

2007 Sprinter 2500 crd
1998 MB e300 TD
2005 Passat GLS TDi
1986 Isuzu Trooper 2.23 TD
Arctic Cat 700 Diesel