Thanks for the advice. I just drove an 04 with 39600 miles. The trucks looks and sounds good. We are negotiating the price. They are sending me an Oasis report. I noticed that the 04 did not have a boost gauge like the 05 I drove before. Is the 04 better for the issues listed above that the 05 and 06 suffer from? It looks like it has larger exaust. How will I know if it has been chipped modified? Does it matter?
That is pretty low mileage for the truck for sure. What are they asking for the truck?
The factory boost gauge was in the 05 and newer truck and you might as well throw it in the trash. I personally do not know but usually the factory gauges are inaccurate and the boost gauge is no exception. There are many who will second that. Your better off putting in a set of gauges on the pillar or a digital gauge monitor.
The 03 and 04 trucks were better for the egr cooler design, less failures, the 05 to 07 were the high pressure oil leaks and based on techs in my area the 05 and up also seemed to have more egr cooler issues.
They all from 03 up can have oil cooler block up and all years should have the cooler deleted when the time comes. I dont see this one having any issues that will show up with that low of mileage especially if the updates and maintenance was done religiously.
As far as knowing if it was chipped there is no real way of knowing. If it was a plug and play style like an Edge is it wont leave a foot print. A flash device will just show that the PCM was flashed recently. I would not worry too much if it had a tuner on it or not just make sure you have it checked my another dealership or someone adequate enough with the proper scan tool and knowledge of what to look for on the 6.0L.
On that particular truck with that low of mileage I would not worry too much about it but still have it checked real well. I bought mine with 50k on it in Nov. of 09 and the only problem I have had was injectors, completely my fault, and the oil cooler was clogged so it was rebuilt and the EGR was deleted. I have 108k on it now and still runs strong. The key is maintenance. I learned quickly, but luckily it was under warranty still when I learned the importance of it.