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  #1  
Old 11-26-2010, 02:26 AM
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P0278 trouble code help

Was driving today just cruising around 65 when my truck hiccuped and immediately started to mis, vibrate, & white smoke terribly. At idle it has a bad miss & lost lots of power when driving, is it a injector issue, cracked piston, or valve train issue??? anyone with info please post...

truck is fairly modded with spartan & elite parts, if this matters....
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  #2  
Old 11-26-2010, 02:55 PM
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Re: P0278 trouble code help

White smoke smell like diesel? Sounds like a injector to me.
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Old 11-26-2010, 10:31 PM
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Re: P0278 trouble code help

#6 cyl is your problem, Hopefully its just the injector. notice any extra blow by?
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Old 11-27-2010, 08:06 PM
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Re: P0278 trouble code help

No blow by.. so maybe its just a injector...
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Old 11-27-2010, 08:47 PM
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Re: P0278 trouble code help

Yeah I'd say for sure, might wanna get that taken care of before you run it much more.
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Old 11-27-2010, 09:17 PM
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Re: P0278 trouble code help

if its hung open you will wash the cylinder very quick and will need a new motor.
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Old 11-29-2010, 01:43 PM
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Re: P0278 trouble code help

Oh I parked it as soon as I noticed the problem....
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Old 12-11-2010, 05:18 AM
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Re: P0278 trouble code help

Well I have a update on the truck..turned out to be a stuck injector witched did wash the cylinder and cracked a piston all the way threw the center... so motor is coming our and time for a few more upgrades... Also when we pulled the tranny out the input shaft fell out aswell..........
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Old 12-12-2010, 04:13 PM
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Re: P0278 trouble code help

Sucks to hear man! New shortblock or just gonna build it?
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Old 12-12-2010, 05:41 PM
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Re: P0278 trouble code help

Thats not good, if cash is a issue you can think of boring that hole out and resleving it and thowing a new piston in and go.
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