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#11923135 - 11/08/16 10:23 AM Ecoboost Engine Problem Possible fix
Fin'n Offline
Pro Angler

Registered: 06/18/07
Posts: 627
Loc: FishnrHuntn
Seems the ecoboost fuel system routes the motors gases
and vapors back through the fuel system where it's injected
to the intake valves where it causes buildup of gunk carbon deposits
causing a hard to start and lowered mpg.

And that was a long collector build video of a possible fix.



Edited by Plop (11/08/16 08:52 PM)
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#11933635 - 11/14/16 12:28 PM Re: Ecoboost Engine Problem Possible fix [Re: Fin'n]
Stump jumper Online   content
TFF Celebrity

Registered: 04/19/04
Posts: 7690
Loc: Rockwall
Just another carppy engine design from the leader in them
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2017 Tundra TSS 4x4 Crewmax 5.7L

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#11933785 - 11/14/16 01:50 PM Re: Ecoboost Engine Problem Possible fix [Re: Fin'n]
redchevy Offline
TFF Celebrity

Registered: 01/25/05
Posts: 6902
Loc: texas
Its called EGR Exhaust gas recirculation. It is detrimental to long engine life and no manufacturer would put it on a vehicle without their hand being forced by the big bad EPA.

Many engines have issues with it, not just the ecoboost.

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#11934006 - 11/14/16 03:28 PM Re: Ecoboost Engine Problem Possible fix [Re: Fin'n]
Samsonsworld Online   content
TFF Team Angler

Registered: 12/12/08
Posts: 3305
Loc: Oeste Del Tejas
As far as I know, the ecoboost doesn't have exhaust recirculation. It does have gasoline direct injection (gdi), which along with ethanol fuel can lead to carbon deposits. But as Redchevy mentioned, that's not just a Ford thing.

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#11934014 - 11/14/16 03:32 PM Re: Ecoboost Engine Problem Possible fix [Re: Fin'n]
redchevy Offline
TFF Celebrity

Registered: 01/25/05
Posts: 6902
Loc: texas
I was under the impression that dang near any modern production vehicle has egr. My 1994 chevy with a 350 had an EGR valve.

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#11934023 - 11/14/16 03:35 PM Re: Ecoboost Engine Problem Possible fix [Re: redchevy]
redchevy Offline
TFF Celebrity

Registered: 01/25/05
Posts: 6902
Loc: texas
Just applied google foo, they have something that accomplishes the same thing as an EGR without an EGR valve driven by cam timing.

Wonder if you can stop this design with a tuner of sorts?


Edited by redchevy (11/14/16 03:36 PM)

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#11934062 - 11/14/16 03:50 PM Re: Ecoboost Engine Problem Possible fix [Re: Fin'n]
Samsonsworld Online   content
TFF Team Angler

Registered: 12/12/08
Posts: 3305
Loc: Oeste Del Tejas
IDK. This is on the 2.7l:

The dohc, four-valves-per-cylinder engine employs twin-independent continuously-variable valve timing (TI-CVT), with the phasers operating in a range of over 30º. Ford is able to use TI-CVT to eliminate the need for an exhaust gas recirculation (EGR) valve.

Now maybe somebody can translate. wink

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#11934081 - 11/14/16 03:57 PM Re: Ecoboost Engine Problem Possible fix [Re: Fin'n]
Samsonsworld Online   content
TFF Team Angler

Registered: 12/12/08
Posts: 3305
Loc: Oeste Del Tejas
At the Detroit Auto Show in January, Ford was confident enough about its popular 3.5 liter EcoBoost direct-injection V6 to have technicians tear down an example engine that had accumulated the equivalent of 160,000 miles through an intentionally abusive regimen of log dragging, high-speed towing and desert racing. When they opened it up before a live audience, they found some light carbon deposits on the valves and pistons, but not enough to affect performance. In fact, the engine showed a loss of just one horsepower afterwards

GDI Article

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#11934082 - 11/14/16 03:57 PM Re: Ecoboost Engine Problem Possible fix [Re: Fin'n]
redchevy Offline
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Registered: 01/25/05
Posts: 6902
Loc: texas
The valves overlap a little allowing to draw some exhaust back in on the intake stroke.

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#11934086 - 11/14/16 03:59 PM Re: Ecoboost Engine Problem Possible fix [Re: Samsonsworld]
redchevy Offline
TFF Celebrity

Registered: 01/25/05
Posts: 6902
Loc: texas
Originally Posted By: Samsonsworld
At the Detroit Auto Show in January, Ford was confident enough about its popular 3.5 liter EcoBoost direct-injection V6 to have technicians tear down an example engine that had accumulated the equivalent of 160,000 miles through an intentionally abusive regimen of log dragging, high-speed towing and desert racing. When they opened it up before a live audience, they found some light carbon deposits on the valves and pistons, but not enough to affect performance. In fact, the engine showed a loss of just one horsepower afterwards

GDI Article


I think typically these systems work better when the engines are being worked. Its periods of idle and light load that create the issues.

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#11934097 - 11/14/16 04:08 PM Re: Ecoboost Engine Problem Possible fix [Re: Fin'n]
Samsonsworld Online   content
TFF Team Angler

Registered: 12/12/08
Posts: 3305
Loc: Oeste Del Tejas
I agree.

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#11934104 - 11/14/16 04:11 PM Re: Ecoboost Engine Problem Possible fix [Re: Fin'n]
Allison1 Offline
TFF Guru

Registered: 12/14/03
Posts: 18049
Loc: Grand Prairie, Tx
I don't know how many trucks have this problem but the most common symptom after its affected is your car runs a little rough the first couple minutes and then straightens out. The PCV valve puts a small amount of exhaust gas through your intake, normally affecting the inside two valves most.
The fix is not sponsored by Ford but involves catching the exhaust gases and putting them through a "catch can" to take the exhaust vapor and letting it condense. When the can is full you drain it.

Several videos on You Tube and you can find the catch can kits all over, even on Amazon.

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#11934325 - 11/14/16 06:05 PM Re: Ecoboost Engine Problem Possible fix [Re: Fin'n]
Couples Team Online   content
Angler

Registered: 05/02/13
Posts: 274
Loc: Lindale
I think you would get more carbon build up from the PCV system, not from the egr system as the exhaust gases tend to be hot dried up carbon monoxide! If you look at the inside of the intake manifold, there is always a lot of carbon build up inside, hence coming from the pcv system, which circulates back thru the valves! Plus, the fuel which has ethanol, sucks!

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