Lifetime Supporting Member
Join Date: Dec 2009
Feedback Score: 0 reviews
Unburned fuel has to be a result of non-combustion. If the glow plugs are truly working, then the only explanation is the 20-degree air combined with slow cranking speed and/or low compression didn't allow fuel to ignite in one or more cylinders until the engine warmed up.
2003 F-250 XLT Crew Cab 7.3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM
I wonder if clouds ever look down on us and say, "Hey, look - that one is shaped like an idiot!"