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Old 01-19-2012, 04:19 AM
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sluge in turbo

Hello I am interested in a 99 f-350 with a 7.3 and am anxious to buy one if not this truck . The individual let me take it in to ford to have it checked out before purchasing. It blew some white smoke but runs great once warm and is a very nice truck for a decent price$ 10,900 Canadian and has 270 000 kilometers about 168 000 mi. The ford mechanics at the dealer said it looks like an ok truck with the exeption of an exhaust leak on the turbo , and even worse they pulled the intake ? hose ? off the turbo and found some "sludge" in it , witch means i have blowby and they said to stay away from it uless i get a realy good deal. they however said the the motor runs realy good on the test drive. I Told this to a friend with an older 7.3 non turbo and he said that it sounds like the ford guys are trying to scare me away from it , these things are tough, they all smoke when cold and are not easy to kill . also if I do need to work on it this is one of the simpler ones out there. I heard of the oil cap test but is some blowby normal ? and does sluge in the turbo mean the motor is on its last leg or just that the turbo needs a service and cleen ? I feel sceptical , but also wonder how accurate they can be on estimating the life of such a beefy motor without doing even a comp. test? ANY avice to stay way or sounds normal would be greatly apreciated . thanks so much.
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Old 01-19-2012, 04:28 AM
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The white smoke could be injector orings or GPs since it goes away once warm. Not a terrible thing, more an inconvenience.
The exhaust is probably the uppipes from the headers to the turbo exhaust housing. Common, fixable. If it's really bad it'll need to be fixed right away.
The sludge is because the crank case vents into the intake, putting oil residue in the entire intake tract. They ALL have blowby.
You're friend isn't that smart. They don't all smoke when cold. In fact, they shouldn't.
Yes, they are fairly simple to work on. Just don't cheap out on anything.
You're right, they shoulda compression checked it but you probably woulda had to pay em for that. They needed to check the compressor wheel shaft play. Take off the intake, grab the turbo shaft and move it side to side and up and down. It should move VERY little.
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Old 01-19-2012, 07:44 AM
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Watch it on a cold start up again. Being in Canada I'm sure your colder than we are in Michigan. Averaging below 20 F at night ( -6C) and not being able to plug in, I see some blue smoke when I start in the morning. It's not heavy smoke but you can see it. It goes away as it warms up. Really it's just unburnt fuel since the engine isn't warm enough to complete combustion.

Really I would get a second opinion because the Ford "techs" that looked at it do not sound like they know diesels. What they mention as problems are common characteristics of the 7.3.

Last edited by mxfever090; 01-19-2012 at 07:45 AM. Reason: terrible grammer
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