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Old 12-19-2014, 09:14 PM   #1
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Any documented cases of carbon buildup

Any documented case of carbon build up on the intake valves of the 2.0 L Duratec Ti-VCT Engine? NA or turbo?

I know the 3.5 eco boost has problems as well as Vw and Audi

I just picked up a Escape with 2.0 eco boost and am considering a catch can but only it is a real problem and not speculation


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Old 12-19-2014, 09:44 PM   #2
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I have been reading everything on the Focus forums for the past few years.. No one has complained about carbon buildup in any meaningful way.
It has been discussed as you have.. with comments this has happened to other direct injection engines etc..
But nothing specific about MK3 Focus owners having such problems.
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Old 12-20-2014, 04:37 AM   #3
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Quote:
Originally Posted by Elizabeth View Post
I have been reading everything on the Focus forums for the past few years.. No one has complained about carbon buildup in any meaningful way.
It has been discussed as you have.. with comments this has happened to other direct injection engines etc..
But nothing specific about MK3 Focus owners having such problems.
You must have missed these two:

New Warning To All Ford Ecoboost Owners!

Ford Ecoboost Warning Part 2 My Findings
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Old 12-20-2014, 09:21 AM   #4
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Quote:
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You must have missed these two:
No, those are the same sort of warning with no real issues directly tied to failures. They are warnings that some folks think it is a problem. Which is NOT the same as actual failures and repair/replacement of parts of engines.
Thinking it might be leading to a fail is not the same thing as a fail.
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Old 12-21-2014, 04:13 PM   #5
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Harbor freight has $69 Boroscopes.
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Old 12-21-2014, 06:50 PM   #6
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Why not give your car some Italian tuneup?

http://en.wikipedia.org/wiki/Italian_tuneup


I drive it at WOT all the time... no need to worry (except for drivetrain strain but that's another story)

Quote:
"To eliminate the problem of intake valve deposits that plague current direct gasoline injection engines, the engineers at Mazda determined that deposits are formed when intake valve temperatures fall below 400 degrees C. Measures were taken so that the intake valve would operate above this point to reduce deposit formation."
I'm sure Ford were smart too and overlap in exhaust stroke to get them hot like cakes
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Old 12-21-2014, 07:00 PM   #7
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Quote:
Originally Posted by ELCouz View Post
Why not give your car some Italian tuneup?

http://en.wikipedia.org/wiki/Italian_tuneup


I drive it at WOT all the time... no need to worry (except for drivetrain strain but that's another story)



I'm sure Ford were smart too and overlap in exhaust stroke to get them hot like cakes
This is the most amazing thing I've seen!
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Old 12-21-2014, 07:18 PM   #8
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This is the most amazing thing I've seen!
Indeed
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Old 12-21-2014, 09:01 PM   #9
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please stay to the topic at hand

actually, that mazda tidbit was helpful. might explain the lack of cases...
Quote:
Originally Posted by cobrajet429 View Post
Harbor freight has $69 Boroscopes.
Quote:
Originally Posted by ELCouz View Post
Why not give your car some Italian tuneup?
http://en.wikipedia.org/wiki/Italian_tuneup
I drive it at WOT all the time... no need to worry (except for drivetrain strain but that's another story)
I'm sure Ford were smart too and overlap in exhaust stroke to get them hot like cakes
Quote:
Originally Posted by tnygigles66 View Post
This is the most amazing thing I've seen!
Quote:
Originally Posted by ELCouz View Post
Indeed
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Old 04-29-2015, 10:40 PM   #10
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I'd like to revive this thread with the hopes of finding somebody who has checked their intake valves. Is there really no-one?

I have two focus (with 70,000 and 35,000 miles) that i think are much louder than when new. The 70k mile one is much louder than the 35k mile one and is even starting to vibrate annoyingly at idle. I've checked all the other possibilities (spark plugs, air filter, HPFP, chaffing on wiring harness, motor mounts), and am thinking about inspecting the valves.
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