I have a 2005 F250 with the 6.0L it has 134,000 miles on it. The truck has been running really good until this past weekend.
We bought a 28ft travel trailer that weighs about 7500 to 8000lbs when it is fully loaded out, we where towing it about a 100 miles or so and as I hit hills the transmission would downshift and the RPMs would hit about 2500 then the turbo boost started hitting 20 to 30 PSI with a lot of black smoke coming out of the exhaust. About halfway into our trip the boot popped off the intake or pressure side of the turbo and wouldn't stay on once the pressure started building up. I had to tow the truck to a repair shop where they replaced the boot and hooked it up to a tester and said I was all good.
The rest of the trip though the RPMs would spike and the boost would run really high. we just brought it into a dealer and the checked it over and said the boot was good and nothing causing pressure issues but the boost was running really high and they were surprised we made it back. They recommended tearing the turbo apart and cleaning it for about 400.00 but if that didn't work I might need a new turbo.
I guess I am wondering if this sounds right or if anyone has any suggestions on what to do next? Thank you in advance