Anecdotal Cam Phaser Noise as it relates to oil

[mason979]

5ish years?!

 

[nikhsub1]

Yessir. FYI the rattle got no better with the oil switch to Schaeffers... Truck is going in on Monday to get the phasers done. Truck sounds like a diesel even at idle now, pretty sure my phasers are loose AF

 

[nikhsub1]

So the SA at Ford heard the tapping noise, he thinks it is coming from under the valve cover, passenger side and no it is NOT the fuel pump. Will update when I know more.

 

[smgilles]

Subscribed. Mostly because I am at 99,000 miles and still have not had the cam phaser rattle despite being a 2017.

 

[nikhsub1]

Truck is back and purring like a kitten. The tapping idle noise is gone so it was related to the phasers. My phasers were making noise basically anytime the truck was running and just about every start, even if it just sat for 5 mins.

 

[JohnyPython]

Good to hear. Are you running Schaffer’s or Amsoil?

 

[nikhsub1]

Schaeffers... I'm convinced the truck likes it more than Amsoil.

 

[nikhsub1]

So after a few days with the new phasers I have some more thoughts. First the truck runs better, period. Smoother and silkier. Cold driving is markedly improved, before new phasers the truck was reluctant to get going cold. Miles better now. Also, the truck ALWAYS would backfire after a fuel up for the first mile or so. I mean LOUD backfires that would sound like gunfire. Hilarious and embarrassing at the same time. It did not backfire at all after a fillup today. Related? @FordTechOne any thoughts or wisdom you can share?

 

[FordTechOne]

So after a few days with the new phasers I have some more thoughts. First the truck runs better, period. Smoother and silkier. Cold driving is markedly improved, before new phasers the truck was reluctant to get going cold. Miles better now. Also, the truck ALWAYS would backfire after a fuel up for the first mile or so. I mean LOUD backfires that would sound like gunfire. Hilarious and embarrassing at the same time. It did not backfire at all after a fillup today. Related? @FordTechOne any thoughts or wisdom you can share?

If the phasers were worn to the point of oil bypassing the vanes, I could see the timing being off just enough to cause rough idle but not set a DTC. As far as the backfire sound after filling up, not is really not any correlation there, sounds like more of a coincidence.