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99 still idles rough, low power, is it the turbo?
I posted here a few weeks ago regarding my early 99 7.3. It is running rough, like it is on 7 cylinders. At an idle and under acceleration the truck shakes from the miss. At about 1800 rpm and above it smooths out and builds power, but not like it should. I finally was able to leave it at a mechanic over Xmas. He said it had oil in the intercooler lines and that the turbo was shot. "Blowing oil," he said. I told him in my experience that bad turbos caused alot of smoke. He said it was leaking on the intake side, and the oil was being blown into the engine causing it to flood and run roughly. He quoted me $1500 for the turbo and 6-8 shop hours to r&r. He wanted a couple more shop hours and $150 to chemically clean the intercooler. He also tried to high gross me on a front bearing assembly. He recommended that I don't do the repairs and instead "trade it in."
Trouble is, I looked at the intake side of the turbo before taking it to him, and had it at Ford a week before the problem started (~3 weeks before he saw the truck). There wasn't much for oil in the ic line, and the shaft is tight at the intake side. Ford techs also said turbo looked ok when they saw it ("lightly dusted"). Also, the truck went from no smoke whatsoever to a very light amount of blue smoke, only noticeable if looking for it. And the truck isn't using any more oil than I'm used to in a couple of thousand miles like this.
Now I'm stuck not knowing what to do. I don't trust this mech I took the truck to, as he lied about costs (said he would replace the front bearing assembly for his cost on the part plus labor, cost being $625--trouble is my cost is only $495 from the dealer, and I don't mind a mechanic making money, but I didn't ask for his cost, so why lie??). I called Ford and they can't see the truck for over a week on account of my schedule and theirs, but the service guy there I sort of trust told me that he didn't believe it was the turbo.
I want to buy a turbo and bolt it on, but I don't want to spend $800 to find out that my mechanic was full of bs. Does this sound like a turbo? I've replaced a bad turbo before, and you could tell it was bad from several blocks away (smoke). There simply is not much oil at all in the intercooler lines, and this doesn't seem like the problem. I hope I'm wrong so I can fix this thing. Never t!hought I'd say it but I wish I knew I had a bad turbo so I can move forward!
My other option is to wait until the 18th and let Ford diagnose it, but sometimes it seems like if the truck doesn't have any codes, they don't know what to do. I'm tired of spending money for no help--I paid Ford $80 to look at her for poor mileage (getting 11-12 mpg empty going <70 mph) only to have them try to sell me a new intake for $500 with no assurance that it would help; now I paid $170 to this mechanic for what I'm afraid is bs.
I need to fix this truck, but am at a loss. Any ideas out there?
How do you check fuel pressure? I have an old fuel pressure gauge, but not sure where I can tap into the line.
Any help would be greatly appreciated.
PS Anyone know a of a good mech around Bozeman, MT???