[/B]It’s a long story so please bear with me.
I have an 05 F250 6.0 with 49,000 miles. I have owned it for 3 years and it’s been in the shop 3 times for the typical repairs (Turbo, inner-cooler, ERG valve ERG cooler, main seal, injector, and ignition computer). Well it’s in the shop again. This time the truck was suffering from low turbo boost and poor power, all of which was sudden onset. The 5 year 100,000 mile diesel motor warranty expired in Dec but I have and extended warranty so I took it to the dealer.
At first the dealer said that they found the boost problem and replaced the outer ring of the turbo (hot side) and the inner-cooler, all covered by the extended warranty. However the truck was still suffering from low power. They continued looking and were unable to find the problem so they brought in a Ford Field Tech.
The Field Tech first says that my “Injen” intake has caused cylinder damage so they perform a compression test which came back fine. The dealership then calls me and states that the Ford Tech wants me to remove the “Flow Pro” exhaust because that may be the cause of the problem. I explained to them that was not going to happen and that the exhaust had been on for two years and the truck had been running fine till now. So they ran some further tests and came back and said that the Ford Tech believes that all 8 injectors are bad but that the only way to know for sure is to replace two injectors and retest. The injectors however are not covered by my extended warrant but are however covered by an 8 year 80,000 mile emissions warranty. The dealership then calls back and states that the Ford Tech wants all of my service records before covering the work because injectors can be damaged due to poor service. I then begin to scramble to find the needed paperwork. I collected what I had and faxed it in.
I was then called back and told that the warranty clam was denied based on one missing recite seeming showing a 10,000 mile gap in oil changes and one gap in recites for an oil change I did myself in which I had proof of purchase of the oil for. The Ford Tech also stated the use of full synthetic oil (AMS OIL) instead of conventional oil as a reason for denial. I then spent 3 hrs. on the phone with Ford customer service for them in the end to tell me they stand by the field tech and that there is nothing I could do.
At this point I re contacted the dealer to find out was it was going to cost to fix the truck, the reply, $800 for the first two injectors to see if that is the problem and $2300 if that is in fact the problem. If that is not the problem they are right back to square one.
I then went and picked up the truck to see for myself what it was like after the repairs they had already made. The truck drove worse than when I dropped it off 10-15psi of boost and no power, but runs fine no spittering, sputtering, loping , nothing.
The truck is now at a different dealer waiting to be looked at. I FEEL LIKE I’M GETTING SCREWED!
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Any help would be great!

 

Your base emissions warranty is 5 yr / 100k miles (not 8 yrs) .. does your extended warrnty extend the emissions coverage?

Also, Ford now states that synthetic oil is OK. I can get you that info if need be.

 

I would like the info if you could get it to me.

Thanks

 

check you engine hour meter vs the amount of oil changes you have. you may be able to use that to your advantage. 200 hours to one oil change should be good enugh.

 

Welcome to FTE F559

The information is helpful but it is hard to diagnose a problem setting behind the computer, I hope you understand that. Taking your truck to another dealer for a second opinion is a good idea. The computer has many inputs which need to be correct for the engine to run, a biased BARO sensor can be a source of low power. Without having the truck on hand it is really hard to tell what is going on.

Keep us informed and one of the resident technicians may chime in on what could be happening.

 

Was the oil cooler taken care of when the EGR cooler was replaced? Typically those things go hand in hand.

I've tried reading the original post a couple of times and it just seems a little off to me. That little thing with synthetic oil as a reason for denial is a load of crock or my dealership has been really kind to me. I don't know which it was.

 

It does not look like the oil cooler was ever repaired or replaced.

It seems to me that this Ford Field Tech is just trying to get out of taking care of the problem. And so far he's getting his way and I'm getting the shaft.

 

here the info I have on oil:
For normal or severe service, use Motorcraft oil or an equivalent oil
conforming to Ford Specification WSS-M2C171–D or API Service
categories CI-4 PLUS, CI-4/SL or DHD-1. If CI-4 PLUS oil is not available
CI-4 or CH-4 is acceptable.


Maximum oil change interval
❑ Normal schedule: 7,500 miles (12,000 km) or 6 months, whichever occurs first.
❑ Special Operating Conditions: 5,000 miles (8,000 km), 6 months or 200 hours of engine operation

 

Well,
I have heard of many experiences similar to yours where the dealer/tech just throw parts at the truck not really knowing what the problem is. One time i brought my truck to the dealer (out of warranty) to diagnose an oil leak (had a speck on the RMS). They gave me a long least of all the places it was leaking and an estimate for $1500 and I'll never forget this part, at the bottom of the list they had penciled in..."and if that doesn't work, will do something else.." i said heck know and went and found an expert. Not sure where you live, but if its close to you go see this fella and be done with it, www.powerstrokehelp.com.

Good luck!

 

well here is the info from the oil I use, and from the area in RED you can see the it meets Ford specs.

APPLICATIONS
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is engineered for use in a wide variety of light and heavyduty applications, including over-the-road trucks, off road construction, marine engines, farm equipment, mining, industrial (pumps & generators) and personal automotive or commercial transportation. It is excellent for use with low or high sulfur diesel fuels in standard, turbocharged or supercharged engines, including modern low emission diesels such as those equipped with EGR systems.
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is recommended for use in diesel engines and other applications requiring any of the listed worldwide specifications and gasoline engines requiring API SL, SJ, SH… or ACEA A3.
• API CI-4+, CF, CF-2, SL, SJ, SH
• ACEA A3/B3, E2, E3, E5, E7
• Global DHD-1
• JASO DH-1
• Mack EO-M+ EO-N Premium Plus '03
• DDC Power Guard 93K214
• Caterpillar ECF-1A, ECF-2
• Cummins CES 20071, 20072, 20076, 20077, 20078
• Volvo VDS-2, VDS-3
• MB 228.3, 229.1
• MAN 271/3275
• MTU Type 2
• Allison C-4
MIXING AMSOIL
AMSOIL AME is compatible with conventional and synthetic motor oils. Mixing AMSOIL motor oils with other oils, however, will shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.

 

Amsoil will cause an injector imbalance not a low boost condition, your looking in the wrong place.

 

I also do not believe it is an injector problem. The engine never ran rough, I've never heard of all 8 injectors failing at the same time, and why would bad injectors resolt in low boost pressures.

But since you brought it up why would amsoil cause injector unbalance and what would be the symptoms?

 

My local technician has one customer who insists on using Amsoil. Customer comes in complaining truck is is running rough, Tech changes oil and everything is fine. This continues for three oil changes until the customer finally gives up. The Amsoil is shearing which causes injector imbalance. The 6.0L is good at shearing oil, so how much did the customer save by using Amsoil?

 

low boost can be caused by lack of fuel being delivered correctly. no fuel= no power = no boost.

 

It took two posts to answer the question but I think they Maxium and Cheezit covered it pretty well actually. How long have you been running the Scamsoil in your truck?