Pull off the hoses to your intercooler and let me know what that looks like.... All the port injection helps to clean is right at the valve. Your still sucking all that crap right into your intake system, no bueno.The MY13 could benefit from a catch can because the engine was direct injection. Since MY17 the Eco Boost has been multi-port injection. This has mitigated the need for a catch can. A catch can won't hurt anything and can still be beneficial though. Worst case is that it does nothing.
To add to this, the other thing adding a catch can could do is give the dealer a possible reason to deny possible warranty claims if they somehow managed to determine it was the direct cause of any issues related with the engine and PCV system.The MY13 could benefit from a catch can because the engine was direct injection. Since MY17 the Eco Boost has been multi-port injection. This has mitigated the need for a catch can. A catch can won't hurt anything and can still be beneficial though. Worst case is that it does nothing.
That is true, but doesn't mean some jackass dealership service department won't try to claim that. In that case usually taking the truck to a different dealership is all you need to do.Ford would have to prove that the mod contributed to the issue that it was brought in for to deny a warranty claim. For this mod, that would certainly be a tough bridge to build. If you're that concerned, simply keep the old hose and put it back on before taking it in. There are no permanent modifications going on.