The 2014 Explorer Sport 3.5 EcoBoost is a completely different engine. The 3.5 EcoBoost being discussed here is a Generation 2; the engine in your Explorer is a Generation 1 in a transverse application. The cam phaser startup rattle being discussed here does not apply to your engine; they do not share any timing components.Sorry to jump into a Raptor forum with only a 2014 Explorer Sport but this and the F150 forums seem to be the only places discussing the cam phaser issue on the 3.5L and 3.5L ** engines. Long story short, I had an intermittent CEL that popped Up last weekend and gave the P0016 code. I took it to the dealership and they are saying that the Explorer is having the cam phaser issues that seem to plague this engine and said that it would either need replacement of the cam phasers at a cost to me of ~$3,800 or possibly the entire engine replaced at a significantly higher cost as per Ford’s recommendation for this problem dependent on the results of their testing. Needless to say, I’m in shock. The engine has 174k in mileage and received regular maintenance within the specified frequencies. I’m trying to sort out wby Ford only covered the engines in the F150 under the TSB and not those other vehicles that share the 3.5L engine and if a broader coverage might occur? Not sure anyone has the answers but it’s worth a try to see if anyone has any insight. I really thought that the engine would last longer without issue but the discussions here and on the other forums have been rather eye opening. Thanks in advance.
There are no TSBs for timing chain or phaser issues on your engine; those are not common issues. DTC P0016 indicates a crank/cam correlation issue, which can be caused by anything from a faulty sensor to sticking VCT solenoid or VCT unit.
Did the dealer actually diagnose the issue, or are they just guessing throwing out numbers? Where did they document that Ford recommended engine replacement? There are published diagnostics for that DTC, the only situation that would require engine replacement is in the case of low oil pressure due to internal engine damage.
What maintenance schedule did you follow for oil changes?