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Can this 7.3 be saved????????
I have a 2001 F250 with a 7.3 and only 114000 miles. I bought it from a guy who hadn't had it running for a year because the starter went bad, the door was bashed in, and just didn't want to spend anything on it. I've been working on it off and on since last December. I have had the Ford dealer replace all injectors, glow plugs valve cover harnesses,and injector drive module just to get the service engine light to stay off. They also did a compression test and found 1 cylinder about 30 PSI lower that the rest. All the others were at 350 or so. (They also found a crack in the air intake hose between the air cleaner and the turbo.)I talked to a machinist about the low compression and he said the 7.3 was very hard to kill. He suggested running John Deere break in oil and some Marvel Mystery Oil for a couple of oil changes. The oil is only available in 10W30. He said if it had stuck rings it should loosen them up. I asked him about the bad air hose and he thought if it got dirt in it all 8 cylinders would be low, not just 1.
Well I have put 2000 miles on since I put that oil in, and have added 5 quarts of oil. IT smokes blue when cold, and at idle when hot. It sometimes feels as if it has a slight miss in drive when standing still, but other times it runs fine. Is there any hope save this thing without pulling the engine. The machinist said it probably could get by with just a good ring job, and throw it back together.
Getting tired of spending money on this thing. The whole front end also had to be rebuilt, (ball joints, idler arm etc.)is that normal for this few miles?