Don't you worry about it
Join Date: Jan 2008
Location: North Carolina
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Mine has made that noise since I bought it.
09-16-2 6.4L DIESEL ENGINE TICKING/TAPPING NOISE
Publication Date: August 3, 2009
FORD: 2008-2010 F-Super Duty
This article supersedes TSB 08-19-5 to update the vehicle model years.
Some 2008-2010 F-Super Duty 250-550 vehicles equipped with a 6.4L diesel engine may exhibit a random engine ticking / tapping noise that is most noticeable when engine coolant temperature is 185 °F (85 °C) or higher and from base idle to approximately 1500 RPM. Some customers may complain that this noise becomes more evident after 3000-5000 miles have accumulated on the vehicle or after an engine oil change.
Refer to the Service Procedure for repair recommendations.
The ticking / tapping noise is most noticeable at the rear of the driver's side front wheel well. 6.4L Powerstroke diesel engines exhibit this normal audible condition (some engines will exhibit greater audible noise due to engine build variations). 6.4L Powerstroke diesel engines are manufactured to tight tolerances in order to meet strict durability and reliability standards.
This noise is caused by the relationship between engine block, crankshaft journals, bearing inserts and oil viscosity / film. This relationship allows a pulsation that resonates through the cylinder block and is heard as a metallic ticking noise. This condition is present on all diesel engines.
Technological improvements and overall noise reduction in today's diesel engines make this issue seem new when in fact it was masked by other noises on previous engines. Other engine manufacturers report similar conditions in their diesel engines. Vehicle testing and engine teardown analysis have confirmed this condition will not effect reliability or long term durability of this engine. Dealers should not attempt to perform vehicle to vehicle noise comparisons. This may lead to incorrect conclusions and ineffective repairs.
NOTE: DO NOT ATTEMPT REPAIRS FOR THIS NORMAL NOISE CONDITION. REPLACING THE ENGINE OR INTERNAL COMPONENTS WILL NOT REDUCE OR ELIMINATE THE TICKING/TAPPING NOISE. PLEASE PROVIDE THIS BULLETIN TO CUSTOMERS THAT INQUIRE ABOUT THIS CONDITION.
BASIC PART NO. CONDITION CODE
NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by "do-it-yourselfers". Do not assume that a condition described affects your car or truck. Contact a Ford, Lincoln, or Mercury dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supercede this information with updates. The most recent information is available through Ford Motor Company's on-line technical resources.
Copyright © 2009 Ford Motor Company
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4" Dual Exhaust
4" BDS with Fox shocks and PMF stage 2 traction blocks