as my sig says i got a 6.4 with 6 speed manual. last night i was driving around and all of a sudden i started getting this tick i could notice in the cab from like 1600 rpms and up especially louder when theres not much load on the engine. i just put an s&b intake on and changed the oil this last week. so i got out and checked to make sure it wasnt the intake leaking and that is fine. everything looks fine otherwise. i wonder if its just the clutch . any ideas would be greatly appreciated. i got about 6000 miles on itw

 

If it's just the ticking from the drivers side of the engine bay then it's nothing to worry about. Ford's stance is it's totally normal and does not signify engine damage. Numerous people have reported their tick began after an oil change. There's no "fix" though so just use it as an excuse to turn up Chicken Fried even louder

 

Message Title: 2008 F250-550 Super-duty - 6.4l Diesel - Ticking,tapping Noise, Hot Engine.
Applicable Vehicles :
2008 Truck : 00028 F-series Oasis Message :
Some 2008 F250-550 Super-duty Equipped With A 6.4l Diesel Engine May Exhibit A
Random Ticking/tapping Noise That Is Most Audible On A Hot Engine And Is Most
Noticeable At The Rear Of The Engine And Inside The Front Wheel Wells. The Noise
Resonates Through The Cylinder Block And Or Heads Is Heard As A Metallic Ticking
Or Tapping Sound, Like A Spark Plug Wire Arcing Or Lifter Tick.the Ticking Or
Tapping Noise Can Come And Go And Has A Nonrhythmic Pattern. Engineering Is
Aware Of This Noise And Has An Investigation Underway. At This Time, The Noise
Is Considered As A Normal Operating Characteristic Of The Engine. The Noise Has
No Short Or Long Term Effects On The Engine. Dealers Should Not Attempt To
Compare Any Customer Vehicles Exhibiting This Noise With Other Similar Vehicles
As The Noise Is Different From Vehicle To Vehicle. Monitor Oasis For Updates.

 

wait it says the noise is nonrythmic. mine is i think. ha idk whatever. if it blows up its there problem. thanks guys

 

Here is a TSB that was released on the issue or non-issue in this case...

6.4L DIESEL ENGINE TICKING / TAPPING NOISE
TSB 08-19-5

 

Thanks to PowerstrokeHD for posting the TSB. My truck does that after oil changes. It goes away after a few hours. Apparently there is no harm in it. There was a lot of chatter on the board about this several months back.

 

and some of us have never heard it all.

 

Mine stopped after they replaced the fuel pump.

 

I'll be doing my first Oil change this upcomming weekend. Should have about 3600 miles on it by then. How loud is this ticking?? I here some lifter ticking at times but it's not that loud, at least I dont think so not enough for me to realy notice unless I listen for it.

JK

 

Not loud, read the TSB above, I did not have it all.

 

I notice my engine seems to tick, but it seems more evident during regen. I just thought it was from fuel knock.