Canada, what do you consider to be an excessive oil change interval? Just wondering.

 

I don't really want to start an arguement over oil change intervals, so I probably shouldn't answer. But, I wouldn't recommend going more that 8000 km between oil changes, and no more than 20,000 km between fuel filters.

 

you shouldn't have i can see this being the end of this thread going into oil change intervals

 

Not trying to start a war. I value the point of view of someone that works on diesels for a living and has probably seen more problems than I can ever imagine. I just wanted to see if I might need to adjust my maintenance intervals to avoid any potential problems down the road.

Thanks for the response Canada. It's very much appreciated.

 

I think it's great that we have input from Ford 6.0 Technicians on this site.


Seems like it would be beneficial to replace the remaining 3 injectors with the newer C-95 model. Could a faulty injector 'come apart' and cause severe engine damage? It would probably be expensive, but if it keeps your Spouse happy then it's certainly worth every penny to have them replaced, I believe.

 

Thanks for the suggestions. I will ask the shop to check the fuel pressure, but I think one of the three dealers who replaced injectors last week would probably have checked it.

Thus far, replacing the remaining C94 faulty-design injectors has only been refused by 3 local dealers and the area rep.

Anyone know of a contact at Ford who might be able to help?

Otherwise it sounds like I may have to pay for this myself, and then try to get something back from ford using one of the action columns (Trailer Life, Good Sam, etc.) or small claims court.

 

So how much warranty do you have left. Thats the real question they just might fail before thtas up.?

 

Only 46,000 miles on the truck. Truck warranty has run out, but engine has a 100,000 warranty. So they will certainly have to replace the remaining 3 injectors sometime during the warranty period (with my $100 co-pay each time). I just would rather not wait to be stranded 3 more times (usually including weekends) in picturesque regions of the country.

 

bite the bullet and replace the old injectors yourself. far cheaper than 3 more times of motel rooms, tow bills, $100 Ford Smiley Face Warranty ripoff and unhappy wife with ruined vacation.

Ford will make your life miserable in court, be prepared to spend lots of time in your attorney's office and the courthouse

 

It's kind of sad that Ford would take the chance of paying the labor a second time, rather than bite the bullet for a couple more injectors. However, if your other injectors have problems, you'll know once it starts to get cold out. Depending on where you live of course.
As for checking the fuel pressure, any good diesel tech. would check it any time he or she sees a failed fuel injector.

 

Canada Guy do you know what these injectors are worth? I would imagine there pretty pricey.

 

It's been a while since I've done retail injectors, so I don't pay attention to the price... but I seem to recall them being under $500 cdn. each.

 

its kind of a pain to check fuel pressure the way ford says to do it. I got a secondary fuel filter housing cap(next to the oil filter) drilled and tapped it to take my gauge. Its a lot easier that way.

 

I too have the early 03 C-94's(Jan.03 engine). My truck lost power on a cross-country coming into Flagstaff,AZ with about 1100 miles on it. Had it towed in. Had one leaking injector(#8)replaced, and a turbo kit. I still have the remaining c-94 injectors in there. Had a regional Ford rep look at my truck due to the early surging problems, and he told me the vast majority of the c-94 initial failures were due to crimped o-rings during installation. I now have 52,000 miles on the truck, and the seven remaining c-94's. So far, no problem, but I watch my oil level like a hawk. I even dropped my changes to 13.5 qts. to keep the level in the middle of the dipstick so I can keep an eye on it. At 15 qts. it's on the wire above the plastic level indicator, and virtually impossible to tell how much oil is overfilled, and if diesel is leaking into the oil. Besides, I never had a surging idle after doing this, but on a regular basis before. I have an article at home, can't remember where from, but it was a very technical article about the c-94's and the original flawed design, something about the side loading thing. I think it was from the "Blue Oval Press" or something like that. I do run additives in every tank now, and change oil every 5,000 with syn since 30,000. I know there are trucks out there like mine with no injector failures, so who knows? But, if there wasn't a problem with the design, why did Ford change it so suddenly? I couldn't get mine replaced either. Ford will do them one at a time, until the warranty expires, and then guess who pays?

 

Hi Guydiver12

re: "Ford rep ... told me the vast majority of the c-94 initial failures were due to crimped o-rings during installation. "

If I recall correctly, there were actually three injectors. The crimped o-ring issue was with the injectors originally used on the earliest 6.0's produced. These original ones had been used previously in the IH engine which became the 6.0. Shortly after the first 6.0's were delivered to dealers, Ford realized there were very early failures related to the delicacy required when installing these injectors. This was just before sales of the 6.0 to the public began. The injectors were replaced in all of these earliest engines using a "corrected" design (the c-94). But it had some issues of its own. Within months, Ford recalled all of the c-94 fuel injectors in dealer inventory and by April 2003 began to use a new design, the c-95. However Ford decided not to replace the c-94 injectors that were already installed until they failed.

At least this is my recollection from the discussions in 2003, when this issue was hot.