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View Full Version : 2004 F250 6.0litre diesel

bug220
Oct 18, 2010, 05:27 PM
My 2004 f250 6.0 diesel makes a humming noise when you turn the ignition key on, and also when you turn the truck off. What might cause this?
TxGreaseMonkey
Oct 18, 2010, 05:53 PM
Fuel pump?