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    caramoka's Avatar
    caramoka Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 10, 2011, 11:13 PM
    2004,6.0,diesel f350.. runs rough,knocks,lack of power... what is wrong?
    Cleaned egr valve,no warning lights on,light puffs of blue smoke... not continues. Recent work performed,oil cooler replaced,egr valve,turbo replaced. 220,thousand
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Nov 11, 2011, 06:45 AM
    Blue smoke forms when the engine's lubricating oil is being burned, indicating worn piston rings, valve guides, or seals. Also, the oil can come from an overfilled crankcase. I only run full synthetic heavy duty diesel engine oil in trucks I service. Helps engine, EGR, and turbo, among other things, to perform and last much longer. Synthetic HDEO is crucial for turbo diesels.
    jershu3's Avatar
    jershu3 Posts: 21, Reputation: 1
    New Member
    		  
    #3

    Nov 28, 2011, 09:55 PM
    The 6.0 was notorious for problems. EGR, head gaskets, so forth. I would recommend calling the dealer with your VIN and milage to see if there are any outstanding recalls for it. It may even have an extended warentee if no modifications have been made.
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