Question about 2007 Ford F-250 Super Duty Lariat

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F250 Lariat Diesel turbo no function sometimes and exhaust smoke white

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You didnt specify if this is a 6L or 6.4L since its an 07 it could be either. If 6.0L, White smoke typically indicates a blown egr cooler and this usually damages the egr valve which may cause it to fail open allowing the coolant to enter the combustion chambers and be burnt and cause white smoke, If its a 6.4L I have seen the highside turbo bearings fail causing poor performance and seal failure resulting in oil getting into exhaust, high exhaust temps make it burn and it may appear as a whitish colored smoke depending on severity. Hopefully for you its a 6.0L becuase the 6.4L turbo r&r is a repair where we remove the entire cab from the truck. However your not much better off with 6.0L since egr cooler/oil cooler job can easily run you $1500-2000.

Posted on Aug 17, 2010

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Posted on Jan 02, 2017

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Isuzu 3000/Diesel/Turbo/Wizard, I can see a bit of Oil coming from Intake/ThroughBody direct to the Turbo & there also a White Smoke from the exhaust + Misfiring and the car is not pooling as uses to be......


Turbo shaft oil seal is probably leaking a little bit, though not ideal it isn't unusual and not particularly detrimental (mostly).

The white smoke indicates either a water or coolant ingress into the combustion chamber or an excess fuel condition. A small fuel excess usually results in a increasingly dark smoke, grey to sooty black and sometimes an increased diesel knock but large amounts of excess fuel results in white smoke which is unburned fuel.
This is often the result when the fuel injectors are sticking, dribbling, leaking and misfiring could also be a further symptom. Bad starting could be caused by several things needing attention but poor injector performance can be a major factor.

I suggest you have the injectors removed and tested.

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2009 Ford F250 Super Duty Diesel Whistling coming from the Turbo


Turbos are noisy if they are working. If you have the 2009 6.4L they (twin turbo) should be pretty quiet unless you have aftermarket items installed. If no aftermarket mods have been done have the coupling joint between the turbos and the outlet gasket checked by your dealer.
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2003 f250 won't start


Is this a small amount of white smoke or a lot of white smoke? If it is a lot of white smoke it could be a head gasket problem.

1. Do you have coolant in oil or vice versa?
2. Pull spark plugs and inspect for plugs wet with coolant.
3. Do a compression test and check for a low cylinder.

If you have issues in any of these points you will need to replace the head gaskets.

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