In previous posts I was wondering if I have an injector failing, but this leads me to another quetsion, how can you have white smoke after the engine is warmed up? If white smoke is unburnt fuel, doesn't that mean the injector is still putting fuel into the cylinder? If it is, why isn't it combusting?
Or does it mean more that the injector isn't putting the fuel in at the right time, so it just gets pumped out the exhaust?
When I rev it up in neutral, it hesitates, and I hear it sputter abit, then puke out a clound of white smoke. Also with new vavle cover harnesses, and new glow plugs, it still sends alot of white smoke at start up, and for the first 20-30 seconds on driving, (temp now is around 40 deg).
Just trying to understand what the white smoke means, when the truck is all warmed up. Thanks.
White smoke is LACK of fuel like when your fuel pump is going out. Unburnt fuel is black smoke.
2001 7.3 F-250 LB 6sp. Dump bed, Firestone air bags, DP tuner, 4" MBRP, K&N intake with 6637, in tank mods
2002 7.3 EX limited 4x4, ccv mod, edge evo, 6637, RAS, In tank mods, diesel site tranny filter, JW valve body
White smoke on startup is the unburnt fuel due to too cool of a combustion temp. I did some reading and apparently that can happen when the engine is also warmed up due to insufficient fuel while running (ex, low fuel pressure or clogged filter). That could be your issue with the hesitation. Got a way to check the fuel pressure while driving? The early PSD's have a mechanical fuel pump in the back of the valley.
01 F-350 CC 8ft bed SRW 7.3L a/t. 190k
PAA Member #7
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