Lemon??V8 6.0 fuel issues - Diesel Forum - TheDieselStop.com
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post #1 of 5 (permalink) Old 02-26-2013, 12:22 PM Thread Starter
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Lemon??V8 6.0 fuel issues

I have a 2004 Ford Diesel E 350 V8-6.0 Turbo, with 165000 miles on it. I have had it serviced recently for routine oil, Trans filter, brakes and coolant flush, the shop mention the coolant was low and dirty. After the service the van is a rough start, some white smoke when I start and for the 1st few minutes of driving, long shifting times from gear to gear. Now the 2 issues that stand out are the rough start and idle for the 1st little bit, and the hesitation when I accelerate early in the drive cycle, then the hesitation will be more noticeable when driving at a faster speed when I accelerate. I have replaced the ERG cooler Valve and crankshaft sensor, 10 months ago, and had the transmission had been reprogramed. I have always seemed to have issues with the shifting, slow accerlation, but once the truck warms up the shifting is smoother, and is slow to get up and go. I donít see white smoke other than the start up after its been sitting for a while, but the rough idle and hesitation in accerlation, has me concerned. What areas should I be concerned the fuel filter (changed last year), injectors or any other ideas? I would like to keep the Van, but have invested lots of $$ just concerned if I should keep it or move to a gas van.

Thanks for your input.
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post #2 of 5 (permalink) Old 02-26-2013, 05:44 PM
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The Turbo has variable vanes that can clog up or Rust if you don't drive it enough...I would drive it HARD every now and then and do not idle it like a 7.3...clogs it ( unison ring ) ....If you are going to keep it I would delete the EGR valve and get a coolant filter installed ASAP..... along with upgrading the exhaust and Intake filter ...Upgraded FICM would not hurt either......Swamp's Diesel Performance
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post #3 of 5 (permalink) Old 02-26-2013, 07:32 PM
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Unfortunately your low/dirty coolant, combined with your smoke and drivability symptoms tells me you almost certainly have a cracked EGR cooler. This means your engine oil cooler is plugged as well. If you hooked up a scan tool, I bet your oil temps will be a good 30F degrees hotter than your coolant temp. Once you verify those temps, it means doing both coolers, and rebuilding the turbo (it rusts up fast once the EGR cooler cracks, the sticking is what causes hesitation, loss of power, etc). This is a VERY common job combination for the 6.0, and will run over $3,000 for the whole package.

Start with the oil temp/coolant temp check first before moving into fuel system diagnostics. But if you pay to have it done, have them check supply fuel pressure too. If it drops below 45 psi under full load, you probably have fuel system problems too.

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post #4 of 5 (permalink) Old 02-26-2013, 09:52 PM
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ficm voltage test .
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post #5 of 5 (permalink) Old 02-28-2013, 09:02 AM
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Any codes? The fuel filters should be changed every 10K, very important. There's also an updated spring in the fuel bowl that needs to be changed. have to pull the fuel bowl to do this. And I agree, get a scanner on that thing to see whats going on!

02 E350 7.3 - V4
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Last edited by Ujoint; 02-28-2013 at 09:05 AM.
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