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    stas49's Avatar
    stas49 Posts: 1, Reputation: 1
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    #1

    Mar 3, 2010, 03:38 PM
    I have a 2005 Ford F350 6.0 Diesel It runs rough and has loss of power
    2005 6.0 Diesel runs rough claking noise at idle pulsates and misses on highway and hard starting
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #2

    Mar 3, 2010, 06:42 PM

    See if the link below helps:

    https://www.askmehelpdesk.com/cars-t...ml#post1415281

    Problems, such as your's, are often maintenance related. Be sure to check for codes.
    psuphysed's Avatar
    psuphysed Posts: 3, Reputation: 1
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    #3

    Feb 16, 2012, 11:33 AM
    I have recently been experiencing some issues with my 2005 Ford F350 6.0l diesel motor. On January 14th I took my truck in for an oil change and fuel filter change. About 20 minutes after completing the service the vehicle began to have a problem where it would lose power and eventually stall. Upon restarting the vehicle there was a large cloud of smoke (white/grey with some black. Initially I thought this was a result of some residue that had gotten in the system when the fuel filters were changed so I purchased a Cetane booster and fuel system cleaner. I ran this through my truck over the next couple three weeks and had some improvement. Then I let the vehicle sit for a couple of days and it was rough starting and had a little trouble continuing to run until it was nice and warm. I am wondering if the shop that did the fuel filter change did not connect up the Fuel water separator properly or is this an issue of a larger nature? The truck has just under 108,000 miles.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #4

    Feb 16, 2012, 11:55 AM
    You want to change both the under hood fuel filter and the under frame fuel filter.

    It's a big mistake, with any turbo diesel, not to use full synthetic heavy duty diesel engine oil. It will save your turbo from a premature death and help eliminate smoke.

    White smoke is a sign of water vapor or fuel that has been atomized, but not burned. Water vapor may be present in the fuel, or water may be leaking into the cylinders from the cooling system. Also, air in the fuel can cause white smoke. White smoke usually occurs when there is not enough heat to burn the fuel. The unburned fuel particles go out the tailpipe and typically produce a rich fuel smell. It's not unusual to see white smoke in the exhaust, during cold weather, until the engine warms up. Bad glow plugs (burned out, coated with carbon, or not receiving proper start-up voltage) or a faulty glow plug control module can cause white smoke on engine start up.

    Black smoke is usually a signal that there's too much fuel, not enough air, or injector pump timing is off. One of the most common causes is an air inlet restriction. The cause may be a dirty air filter, a collapsed intake hose, or an exhaust restriction.
    psuphysed's Avatar
    psuphysed Posts: 3, Reputation: 1
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    #5

    Feb 16, 2012, 12:18 PM
    Thanks for the reply. I will get it checked out and have the codes scanned.

    psuphysed's Avatar
    psuphysed Posts: 3, Reputation: 1
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    #6

    Feb 22, 2012, 12:03 PM
    Turned out it was the EGR valve clogged with carbon deposits.

    Thanks for the advice

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