Just had my '05 F250 head gaskets done (second time on this truck). According to OASIS and previous owner they were originally done by the dealer under warranty at 30,000miles by a dealer in Fort Lauderdale Fla. using ARP studs/OEM gaskets. My mechanic says there was oil/fluid in stud holes under studs causing the studs to back out!!! Bought the truck used at last year at 90,000 and so far have had really bad luck with it.
The truck now has 100,000miles on it, has Sinister EGR delete, new STC fitting, I had replaced all down pipes/dummy plugs and o-rings and HPOP in HP oil system system. Truck started steaming/drinking coolant about 2 months ago so I knew I was in trouble. Bit the bullet and had the head gaskets done again ($5K
) The heads were hot tanked, magnafluxed 2x to check for cracks, and .005" milled off face as they were warped (they took some off other side or valves to compensate?) Put back together using new OEM gaskets and reused the ARP studs. Got the truck back after the big job and the first time I tried to restart it after it sat for a few hours it rolled over half a turn, stopped dead for a second then fired and blew tonnes of white smoke. Turns out #4 cylinder is taking in coolant somehow and would hydrolock for a second, then get by and turn over/start. Brought it right back to the shop and after a few days they did a compression test on all cylinders and they are all good, but they are at a loss as to why that #4 cylinder is getting coolant in there??? Anyone with a similar experience or idea as to what could be causing this? Any help greatly appreciated.