Question Help w/ 6.0s

iqzero

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Jan 26, 2009
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Greetings all !!

I recently picked up the following:

2003 F550 Flatbed 6.0L 2WD Single Cab A/T 100K miles - $8,000 auction
and
2004 F350 Long Bed 6.0L 4WD ExCab A/T 160K miles - $10,000 auction

I am pretty excited. But I have a couple problems, wondered if you guys can help.

F550 - Starts well, idles a little rough - drives well, but when you stop it idles really rough, dies sometimes.

F350 - Started fine auction day, but when we came back to pick it up it took about 10 minutes to start. Same when it is cold, takes about 10 minutes to get going, but once it does it is fine.

Both were serviced, oil changes, w/ 30% lucas and Delo oil.
Haven't done fuel filters yet, that is my next task. Someone mentioned something about a fuel rail problem for rough idling. Any ideas? Help!

Thanks

IQZero
 

mx730md

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Sep 26, 2008
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md
try some power service certine booster/injector cleaner it a white bottle with a red cap they sell it at advance auto for like $7 a quart
 

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