Originally Posted By: Jarlaxle
I watched five 6.doh diesels (three E-450's, two F-450's) turn two companies from having most (or in one case, ALL) vehicles be Fords to never buying another.
One Econoline was dumped after Ford pout north of $30,000 into it in a (futile) attempt to get it to run right for more than two weeks. IIRC, it got two sets of heads, three turbochargers, one intercooler, dozens of electronic parts, and three EGR coolers. The other two are still in service...they run sort of OK, if you ignore the constant CEL's. The company has not bought a diesel Ford since...they bought one Ford V10, two GMC's (one gas, one Duramax), and an International (with Maxx-Force DT power). They seem to be switching to gas-engine GMC's.
One F-450 wound up getting a NEW engine (actually shipped directly from the factory to the dealer, by Ford) when the first one spun a bearing due to an oil pan full of diesel fuel. That engine blew recently and spectacularly, with about 108,000 miles...a piston shattered. It was repowered with a 5.9 Cummins...and now makes more power, burns less fuel, and nary a CEL to bee seen! Both F-450's are still in service with Cummins power, the company has bought one Ford since. Their two most recent truck purchases have been Rams (a 5500 and a 4500) with 6.7 Cummins power. The owner says he has probably bought his last Ford.
In perspective, his two 6.doh trucks managed fewer miles COMBINED than his 2001 F-550 4x4 repo truck: that one went 553,000 miles before engine failure.
This is a piston from a Cummins ISM:
Camshaft failure on a Cummins ISX:
Injector failure on a Cummins ISB (2007 Dodge 2500):
International DT466 injector failure:
I can go on.......... And the fun part is that I either took the above pictures, or saw the engines with my own eyes. These aren't scabbed off the Internet.
I'd bet many of the issues you described were either dealer incompetence (many aren't good with diesels) or could have been completely avoided with an EGR delete.
Now, do I think the EGR delete is a reasonable expectation of a user of one of these engines? No, I do not. But EGR cooler failure is the source of the vast majority of the issues with both the 6.0L PSD as well as the VT365. Jon (slammds15) has had ZERO issues with his once the EGR was deleted. It is a [censored] design that is naturally prone to failure (and he was using the "updated" International EGR coolers BTW.....)
Injector issues can oft be traced back to either:
A) Ford's poor programming when they tried to make the engine "quiet"
B) Improper fuel system maintenance (wrong filters used, filter never changed.....etc) Jon can post the pictures of the filter he pulled out of his truck when he bought it. DEALER MAINTAINED. The filter had never been changed.......