04 F350 6.0L grey smoke??? - Ford Powerstroke Diesel Forum
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Old 02-28-2008, 07:26 AM
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04 F350 6.0L grey smoke???

Hi, I have a 2004 F-350 with 6.0L Powerstroke. A couple of days ago I noticed a continuous grey smoke coming from the exhaust (smells really rich). It does it all the time but get etremely bad when I first take off or after letting off on the pedal and accelerating again.(while driving at a constant speed the smoke seams to almost go away). Just before I noticed the grey smoke the heat in my truck quit working at idle but would warm again at load. So I checked my coolant level and it was down about a gallon (3.5 to 4 litres I'm Canadian)
I topped it up and a day or two later the grey smoke started. the oil level is fine and the coolant has not dropped again and has no signs of oil in it ( that I can tell anyways). Truck runs and idles perfect. The only thing I noticed that would be different is the really cold starts below 0 F and -20 C(again Canadian) the truck seems to start and run alot quiter when cold than it did before.
Any help would be appreciated.
Thanks
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Old 02-28-2008, 07:31 AM
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Possible coolant leak into the cylinders. When you say rich is it like a sweet smell or smell like coolant?
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Old 02-28-2008, 07:44 AM
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rich smell

No it smells like a really strong diesel smell like its running really rich??? The smoke burns the eyes.
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Old 02-28-2008, 07:51 AM
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Yeah usually a coolant leak will blow white smoke. Hmm I would try to pull any codes. How does it run otherwise? Could be an inector problem.
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Old 02-28-2008, 07:57 AM
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I don't have a way of pulling codes. All gauges read fine, truck runs and idles fine. All fluid levels are fine now(after adding coolant)
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Old 02-28-2008, 08:02 AM
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Hmm Im no expert especially on the 6.0. Keep an eye on the coolant if it drops again I would say it could be your egr valve possibly also. One of the techs will see this and give you some good advice
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Old 02-28-2008, 08:05 AM
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Maybe its a gumed up EGR Valve and a bad EGR cooler?
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Old 02-28-2008, 08:06 AM
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I'm scared to drive it!!!??? even to the dealer. Thanks for your quick responses and advice. Worst part is I'm about 4000 miles (7000 kms) over for warranty.
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