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3.5 chatter noises at cold start, cam phaser

86K views 50 replies 26 participants last post by  Mirasowaty  
#1 ·
So I researched a bunch and watched videos, my sound is identical.

I’m not overly worried, this is why we have warranty and I bought prepaid maintenance.

But the sound is annoying and concerning a bit, doesn’t seem to affect vehicle performance though.

So who else is suffering from this?

Happens on cold start, blip the throttle gently and the you can hear chatter/flutter (it’s not the bov). When the truck is leaving a stop and you let off the throttle you can hear the chatter as well when the engine loads down.

Some things I have read lead to to replacing the cam phasers, or getting the latest ford pcm flash for the truck to fix the current tune.
 
Discussion starter · #12 ·
After doing a bunch more research i cane across a raptor owner with the exact same noise...very well documented in a lot of YouTube videos. He had multiple things replaced, and then even a new engine. Surprisingly stil that did not solve the noise...it wasn’t until the dealer updated his PCM and trans to the latest software from ford did the noise disappear completely.
 
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