2001 24v Engine "missing" then stalling out???
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From: Pattonville, Texas
LOW fuel pressure is the problem with the in-tank. 8-9 psi at idle. on dad's with just a ez and 275's it would pull it down to 0 at wot. and that's not good. if the truck is stock it might have the volume to cool the IP, but most want to see that pressure needle closer to 15 than 5 psi
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From: Omaha, AR
It don't, but a failing vp44 does
the stock lift pump by the fuel filter will put out 15 psi (when new), the in-tank pump is the low pressure pump, around 8 psi at idle
the stock lift pump by the fuel filter will put out 15 psi (when new), the in-tank pump is the low pressure pump, around 8 psi at idle
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Joined: Nov 2005
Posts: 7,785
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From: Pattonville, Texas
[QUOTE=blackdiesel;1120005]It don't, but a failing vp44 does[QUOTE]
OK - so why does a failing VP44 cause white smoke...
Huh - my buddy has an '04, he's got lower fuel pressure than my in-tank pump; his pressure hasn't really changed from new, from what I hear.
He's approaching 50K miles.
OK - so why does a failing VP44 cause white smoke...
the stock lift pump by the fuel filter will put out 15 psi (when new), the in-tank pump is the low pressure pump, around 8 psi at idle
He's approaching 50K miles.
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From: Omaha, AR
intermitten white smoke is just one sign of a dieing vp44, I would say that it's low pressure on the HIGH side; Your buddy has a common rail, toldly diffarent fuel system, I thought we were talking 2nd gens here.
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From: Pattonville, Texas
Sure - low HIGH pressure from a CP3 also makes white smoke... I know it's a fundamental question (dad - WHY does 2+2=4?), I was just curious why the smoke is white just because the engine is running (I imagine) way lean?
I'm used to:
black smoke - extra fuel
blue smoke - too much oil
white smoke - too much antifreeze or water
WOT haze - well-tuned diesel
green smoke - too much chili
I'm used to:
black smoke - extra fuel
blue smoke - too much oil
white smoke - too much antifreeze or water
WOT haze - well-tuned diesel
green smoke - too much chili
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From: West Illinois
LOW fuel pressure is the problem with the in-tank. 8-9 psi at idle. on dad's with just a ez and 275's it would pull it down to 0 at wot. and that's not good. if the truck is stock it might have the volume to cool the IP, but most want to see that pressure needle closer to 15 than 5 psi
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