babock

One of the reasons I didn't want a Gen 1 3.5 Ecoboost with Direct Injection only was the intake valve issue with carbon build up. After watching this video I am glad I waited. Although it isn't perfect, the Gen 2(2017 and up) with the addition of its port injectors certainly helps a lot!

Home2#7

Should have SIMILAR results for 2.7 2015-17, DI only compared to 2018-current, DI and PI.

2008__XL

The DI and coking issues seem all theoretical. I haven’t seen any posts about being an actual issue. Just people worried about it and wanting a reason to waste money on a catch can.

Im not concerned. I have a 17 2.7. I use full synthetic every 3-5k depending on towing, new air filter every 20k or 2 years, only run 91 non ethanol (local) or 93 (traveling) and follow normal maintenance. I don’t believe I’ll see any issues.

Russell Shettle

He also shoes how much cleaner they stay running a high detergent top tier fuel. That was even more impressive.

babock

He showed a Gen 1 and a Gen 2 Ecoboost and then some other engine with normal port injection. There was no correlation between anything of type fuel used.

babock

Did you even look at the video? He has a bunch of other videos of other type vehicles that show before and after walnut blasting of DI engines. It is a thing which is why Toyota and Ford have both gone to a combination of port and direct injection.

2008__XL

Im talking about people coming to this forum and actually posting saying they’re having real life issues due to that. Not saying some build up isn’t happening, I’m saying people aren’t showing up here in numbers having issues due to said build up.

I didn’t watch the video. I’m speaking of real life issues that are brought up here. Seems minuscule.

BadAV

Toyota and BMW (and other European manufacturers) were particularly bad with DI valve coking when it first came out. With the quantity of F-150s sold there would be a decoking service provider on every street corner if it was a real issue. It appears to me that Ford Engineering got it right with the valve reversion process.

babock

Watch the video.

He is having people come in with cold start/running issues due to carbonized intake vales at 100K with Gen 1 engines.

As far as people coming on here complaining about issues...most people that come on here are lucky if they know how to change spark plugs or change their own oil let alone know the symptoms of carbonized valves.

bradbill

Funny how many experts there are on here that know more than the video without even watching it.

BTW...fascinating video. I have seen his other videos. That guy knows his stuff.