It Was A Dark And Stormy Night

Keith Browning · May 5, 2010

21274 2011 F- SUPER DUTY - 6.7L DIESEL - TICK/TAP NOISE AT IDLE

SOME 6.7L DIESEL EQUIPPED VEHICLES MAY EXHIBIT A 'TICK/TAP' OR 'TYPEWRITER' TYPE NOISE AT IDLE THAT MAY BE ISOLATED TO THE MAIN ENGINE BEARING AREA. THIS NOISE SHOULD BE CONSIDERED 'CHARACTERISTIC' AS IT IS NOT DETRIMENTAL TO ENGINE DURABILITY. 6.7L DIESEL ENGINES INCLUDE DESIGN IMPROVEMENTS TO REDUCE OVERALL INHERENT DIESEL ENGINE NOISE. THESE SOUND REDUCTION IMPROVEMENTS ENABLE CERTAIN CHARACTERISTIC NOISES TO BE MORE EASILY HEARD. USING THE INCORRECT ENGINE OILS FOR THE VEHICLES OPERATING CONDITIONS CAN NEGATIVELY IMPACT THE LEVEL OF NOISE EXPERIENCED. REFER TO VEHICLE OWNER GUIDES AND MAINTENANCE GUIDES FOR APPROVED ENGINE OIL VISCOSITIES AND USAGE INFORMATION. CUSTOMERS SHOULD BE INFORMED THAT THESE CONDITIONS DO NOT AFFECT ENGINE DURABILITY AND NO REPAIRS ARE NECESSARY.

EFFECTIVE DATE: 03/29/2010

I am calling bullshit on this one. I have performed PDI's on about 10 6.7L trucks now and all sounded perfect. Until today. Wait till you hear this sound. Are they kidding? Seriously? Do they think anyone is going to buy a truck making that noise?

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Shlep · May 6, 2010

And the fun begins .... I really hope this isn't the start of things to come.

Aaron · May 6, 2010

Ours was quiet, till it got ran past 3000RPM

Sounds like the 6.4 tapping.

In other news:

Had a 6.2 making a weird tapping/popping noise today. One of the plug wires had fallen off the lower spark plug. No driveability concerns to note -- but the weird tapping/popping noise is the spark arcing to the head. Turn truck off, install plug wire, all is good. They sure don't snap on very tight.