2005 F 250 Super Duty Question...Long Ramble

rowekmr wrote:
We had a 2014 or 2015 F550 6.7L with special bed on it that has been in and out of our motor maintenance. Actually right now I think it is and have heard that our city might be switching to gassers now. I personally drove it many times and didn't have any problems with it but I let it warm up when its cold, take it easy until the temps are in the normal range. I try to drive it longer when it is regenerating.

If I followed your logic I would think the 6.7l MUST be bad because it is always in the shop and I hear all the other drivers complaining that it takes a sec to start (glow plugs), smell fumes and it smokes (regen) and they hear a whine sometimes (turbo). I am more inclined to say operator error coupled with maintenance errors (they don't use dealership). I have worked for several companies that had fleet vehicles and my experience is the drivers dog them out, the mechanics do general maintenance but not always have the up to date info, TSB and computer flashes that the newer trucks have.

I see your point but the 6.0L in question was towed in several times (likely 10-12) not running. It was repaired by our garage, several Ford dealers, and a specialty diesel shop and STILL had endless crappy reliability issues. It was replaced with a F-550 V-10. We have another van exactly like that one that does have slightly higher mileage on it but it is approaching $20k in repairs over the last 3 years or so. This van is slated to be replaced real soon because it is a wallet draining unreliable POS too. We are actually transferring the bodies to new chassis on these because these vehicles are being replaced much sooner than they would have otherwise been with completely new bodies. We are NOT seeing this type of ridiculous reliability and repair bills with any of the Duramax or Cummins powered vehicles that we have. This is also having a very negative effect on our capital replacement program because these 6.0L vehicles are being replaced anywhere between 2-5 years sooner than similar vehicles with different engines, both gas and diesel. We still have a few 7.3L trucks around because they have been so good.

I'm sorry but the 6.0L has MUCH worse reliability than the other 2 brands and the 7.3L.