engineermike

Is the problem caused by the vct unit or timing chain wear?

lewis26

iTrader: (1)

Neither. It's caused by a bad phaser design which binds and causes the chain to stretch.

Metaldyne changed their design so the new phaser doesn't have the problem anymore.

Tothemax

Good to know.

bigred90gt

What are the symptoms of this issue?

Tothemax

Loud Rattle at startup coming from the engine compartment.

lewis26

iTrader: (1)

Starts with a startup rattle, that then happens more and more frequently. Eventually leading to lost power, and then finally a p0016 dct.

Additionally, I had surging power under partial throttle (while merging on the highway), as well as a rough idle (felt almost like a miss).

Tothemax

Just got the call that the truck is done but they want to keep it for another day. The tech found a front pinion seal leak. I told the gal I am in no rush and tell the tech thanks for being observant.

Sirikenewtron

Awesome news! Sounds like you got a good service department

Gremlin85

It's good to hear they are doing this under warranty with no hassle.

How many miles on your ecoboost?

Tothemax

Little over 34k