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Just had same problem with my 04 250 6.0. Wouldn't pull my 11,000 lb toyhauler worth a crap. First time they found a split cac duct,,,second trip to ford ,they changed IPR sensor and connector and the ICP sensor,,,tows awesome now
This is why the 6.0 has a bad reputation. You've got people with NO CLUE of how to properly maintain or care for a high dollar, quirky diesel engine running it into the ground then complaining about it. 65K miles and 2 fuel filter changes...WOW!
The 6.0L has a bad reputation because it earned it. I did all of the maintenance on my 05as scheduled and it still was a nightmare from hell. Bone stock, HPOP, EGR cooler, EGR valve cleaning every 15k miles, and head gaskets problems at under 50K miles. It probably had an injector or 2 going bad as well. And the dealer hosed up the fuel mileage with a non-requested reflash and would not make the effort to get the FICM reprogrammed to restore the fuel economy. I have to put most of the blame on Navistar and Ford for even building this engine the way they did. Had they done the things necessary to build this engine to last and perform instead of cutting corners it would have turned out much better for everyone. Probably the ones who were shafted the worst were the employees at the Indianapolis Navistar engine plant that are losing their jobs as a result of Ford and Navistar divorcing ugly and the residents of Indy who will lose more tax base in the end when Navistar levels the plant to avoid paying property taxes on it.
LiftedBlackHD said, "You've got people with NO CLUE of how to properly maintain or care for a high dollar, quirky diesel engine running it into the ground then complaining about it".
Just wondering where that came from? It may be something I don't understand, but what does the FICM and turbo have to do with fuel filters?
Fuel filters and FICM and turbo may not be related. I changed my fuel filters every 15-16000 miles and never saw a bit of contaminate in the fuel. If all the fuel used was of a good quality it's possible that doubling the interval on fuel filter changes may not kill the engine. I wouldn't want to try it, but I do know some who have. If the PCM was ever reflashed the FICM could have been messed up. It's possible for the FICM to mess up on its own. Turbo issues are known to exist on 6.0L. Vanes do stick. As long as there was a happy ending all is well. I would even buy another 6.0 if it was cheap enough and the mileage was right. But I would really prefer a 7.3L. More reliable and less expensive to maintain. But that Torque-Shift tranny sure was nice, though.
A turbo back shouldn't void any warranty. The vanes on the turbo are prone to sticking, so that's why it's a good idea to get the truck out and drive it like you stole it on occasion. Keeps everything moving free.
4" turbo back exhaust should not void the warranty. It is up to the dealer if warranty gets voided, though. 4" turbo back exhaust won't help fuel economy, but it will lower exhaust gas temp a couple of hundred degrees, which is a good thing. The best thing a person with a 6.0L can do is drive them regularly on longer trips of 50 miles or more, don't idle them excessively, and change oil and filters religiously on schedule. These engines are notorious for shearing oil fairly quickly. That's probably because of the EGR system that's used. If you do run a programmer, use a tuning level that keeps cylinder pressure in tolerance. Don't get extremely aggressive on tunes or you are asking for head gaket problems.
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