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Can Turbo leak cause low compression on cylinders?
We purchased a 2006 F250 4x4 about a year ago with only 102k miles and little knowledge of the extent of the 6.0l problems. With that being said, we quickly learned that we had egr and oil cooler problems. Truck spent the first month at the Diesel shop, we studded it, deleted the egr, replaced oil cooler, added sct livewire ts. Also replaced updated standpipes and dummy plugs. Early this year became apparent that we had some injectors failing. Finally got those replaced, replaced oil and flushed the coolant. We now have rolling smoke at idle, exhaust leak behind the turbo and plugged ebp sensor/tube.
We have put the truck on a scanner and it shows that at a cold start compression is good on all cylinders, but as the truck reaches normal operating temp, the turbo starts stutter and act like its choking, the compression starts to drop in the cylinders. Can this be just a blown seal? Or does it sound like it is more? Turbo rebuild/replace? Head gaskets?
Last night after getting it put back together and running to town for some fuel, I sat in the driveway letting it cool down. As it started to cool, there was a loud knocking that was not present while driving. We have started truck today to place on scanner, still no codes, lots of smoke (mixture of colors), oil level and coolant level still the same, no knocking noise.
Any help or suggestion would be appreciated? Wish there was an easy button that would let us know that replacing seals on the turbo would fix it! LOL