Billowing white smoke all the time - Ford Powerstroke Diesel Forum
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Old 02-08-2007, 05:09 AM
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Question Billowing white smoke all the time

Just bought this 1999 f350 with 7.3, already had to replace the turbo, and waterpump.....truck smokes unrealisticly from the time you start it up until you cut it off, reminds me of a coal burning train, except this is white smoke....it seems to smoke more at idle than it does under acceleration....anybody know what's up with this truck?
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Old 02-08-2007, 05:13 AM
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If I am not mistaking, it is your crankcase ventilating into you intake. If you look at you drivers side valve cover, you see a tube that leads to you intake tube. The white smoke is always more noticable at an idle since less air is flowing though the intake/turbo/exhaust. Some white smoke is normal, too much and ??? I really can't help you more than that. Maybe one of the smart guys will chim in!!! Hope that helps some.
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Old 02-08-2007, 05:24 AM
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Let me say welcome to the site. Not to scare you but white smoke could also mean blown head gasket, have you had to aid coolant to your truck on a regular basis. Could also mean a cracked head or block to. I suggest having a compression test done. The crank case ventilation could be the problem and it could be the cheap repair. But I have seen this before and it ended up to be blown head gaskets. The white smoke is caused from burning coolant. What does your exhaust smell like. White smoke is also caused by cold weather. My truck has been blowing white smoke pretty much all week today is the first day it is above 0 when I leave for work.
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Old 02-08-2007, 05:25 AM
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Welcome to Powerstroke.org


I am not qualified to help you much with your problem... I do know that constant white smoke could be a sign of a coolant leak. Have you checked you coolant level?

Anyway, welcome to the ORG, and there are people much better trained than me who should be along soon to answer your question.
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Old 02-08-2007, 05:36 AM
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You said you replaced the turbo, does that model have the backpressure valve? if so is it hooked up?
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Old 02-08-2007, 05:52 AM
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Quote:
Originally Posted by romans turbo D View Post
You said you replaced the turbo, does that model have the backpressure valve? if so is it hooked up?
I did not personally replace either the turbo or waterpump, a friend who works on diesels did the work for me, he thought the excessive smoke might be from a bad injector or a superchip installed causing the problem....I have only had the truck for 1 week and only driven it about 30 miles....

Do these trucks breakdown as often as I am reading here on this forum?
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Old 02-08-2007, 05:58 AM
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Quote:
Originally Posted by mj's View Post
I did not personally replace either the turbo or waterpump, a friend who works on diesels did the work for me, he thought the excessive smoke might be from a bad injector or a superchip installed causing the problem....I have only had the truck for 1 week and only driven it about 30 miles....

Do these trucks breakdown as often as I am reading here on this forum?
These trucks have there common problems. IE Cam position Sensor, Trannys, Power steering pump, they seem to be the common problem with these trucks. Or at least the only problems I have had with my truck besides the typical alternator, batteries and regular maintanence.

The problem you are having is rare, at least in my book. I think you may have gotten a truck that was abused, or the previous owner knew of a on coming problem and got rid of the truck before they had to fix it. Have you gotten an OASIS Report yet. If you are a Premimum Member to the site you can request one. I would suggest getting one for your truck as it will tell you more history of the truck then a car fax report.
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Old 02-08-2007, 06:33 AM
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I checked with my friend the mechanic who worked on the truck and he said he did not think it was a head gasket, he thought it might be an injector that was not operating properly possibly from having a superchip installed and not having the injectors reset by the computer.....
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Old 02-08-2007, 06:39 AM
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is engine running rough if so could be injector o-ring problem ,most of the time heavy white smoke is way to much fuel raw fuel going into the cylinder not getting mixed with air
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Old 02-08-2007, 06:50 AM
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Quote:
Originally Posted by scott whisenhunt View Post
is engine running rough if so could be injector o-ring problem ,most of the time heavy white smoke is way to much fuel raw fuel going into the cylinder not getting mixed with air
At times the engine idles very rough, then at the next stop light it idles as calm as can be, I haven't noticed or observed whether there is any difference in the smoke output between rough idle and calm idle....
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