two questions and yes one is an oil cooler question
Alright here it is, I have a 05 f-250 6.0 with a 6" lift and 37" tires it also has 62,000 miles on it. The only thing after market done to it (besides lift and tires) is a turbo back 4" exhaust and a s and b cold air intake, everything else is stock, it came like this when I bought the truck with 59,000 miles on it.
So question one is before the egr cooler went bad on it i put 3,000 miles on it and was averaging 12 mpg, even when i drove it 400 miles plus all highway I still only got 12. Is this normal? I figured that it would get like my buddys diesel which is same size lift and tires and hes getting 24. If not normal where should I be looking for something bad and/or replacing?
Second question egr cooler went bad for sure, my truck is under a warranty that covers everything including the tranny if it goes bad even with the larger tires on it (cost me another $1000 to add that on). The only thing the warranty will not cover is emission parts and replacement. So heres my problem/question, They said if the oil cooler is bad then they can charge the 8.5 hours of labor to the warranty to replacing the oil cooler if it is bad and the I will only have to pay for 1 hour of labor and the new egr cooler out of pocket. If the oil cooler isnt bad then its all out of pocket, so about a $2000 difference for my out of pocket expense for the two different outcomes. The dealership id telling me that untill they tear into it that there is no way to know if the oil cooler is also clogged/bad untill they tear into it, is this true? Is there no way to tell if the oil the cooler is bad with out tearing the top of the motor apart? I know that either way ill need to replace both since i will already be in there and its not that much more to replace the oil cooler if you are already replacing the egr cooler, But I dont want to ok the tear down to have them find out that the oil cooler isnt what the warranty company calls "bad" and then be stuck with a $3000 bill vs a $700 bill if the oil cooler is bad.
Thanks for the help in advanced and yes i have searched thru the threads but most of them say how to know when the egr cooler is bad and that I should replace the oil cooler at the same time if its bad or not. Also i can not do a delete kit for it will void my warranty. I would really like to find a ford bulletin or something that has a step by step process of how to check the oil cooler (if such a thing exists) so i can print it off and slap them in the face with it.