what year did the Duratec line quit using swirl flaps in the intake manifold??? - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
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Old 10-23-2016, 09:39 PM   #1
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what year did the Duratec line quit using swirl flaps in the intake manifold???

I can't find a real definitive answer. I know it varies depending on the model of the vehicle (Escape for example).

I found anecdotal information that after 2007 the plates aren't used, but no real positive info.

I have a 2008 SES Focus. When warmed up completely I get a really loud ticking. I haven't done a screwdriver/stethoscope test yet, I apologize. I'm just trying to rule out the swirl plate before I get too far into my research.

What I do know is that it doesn't have the vacuum hose present that I see in troubleshooting videos. There is a rubber cap in between cylinder 2&3 on the manifold where a vaccuum line could've been, but nothing there.


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Old 10-23-2016, 09:45 PM   #2
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The 23 Escape's don't use imrc (tumble flaps) but use imtv....... Look below your t/b,,,,,,the imrc linkage is behind your t/b,,,,you'll see the linkage move w/ throttle.
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Old 10-23-2016, 09:46 PM   #3
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You can always look behind the throttle body to double check for the actuator, lever and joint sticks up far enough to be easily visible when off on the models with tumble flaps.

Operating solenoid moved to the front of the intake with the 2.0 versions, not visible like the two actuators on top for two intake flap arrangements the 2.3 had (tumble flaps and runner control).
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Old 10-23-2016, 09:53 PM   #4
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mine is a 2.0. If I remove the air filter box and look under throttle body, I should see the solenoid? Just shining a flashlight around down there I can't see one.

It doesn't look like the 2005 one shown on youtube at least.

I'm going to drive it up on some ramps soon and see if I can get a look from underneath.
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Old 10-23-2016, 10:07 PM   #5
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Vacuum solenoid is small, right on the front of the 2.0 manifold.

Actuator is large but hidden, the small lever from the intake attaches to the extension arm from it with a plastic ball joint right behind the TB on the manifold side of it. The large vacuum chamber/sensor assy. of the actuator is hidden behind and underneath the TB area, just visible from underneath.

FocussedFamily just had a thread here on P2004 code with a picture of that from underneath, it's MUCH easier to just look for the joint/lever from above.

P2004 Code Duratec 2.3 2004 Focus ZTS
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Old 10-23-2016, 11:08 PM   #6
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Thanks for all the tips. I just did a screwdriver stethoscope test and the noise isn't from the manifold area. Looks like i spoke too soon.

I'm going to pawn it off as a noisy engine design until it gets worse.
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Old 10-23-2016, 11:12 PM   #7
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Injectors aren't exactly quiet....

These aren't particularly noisy, but hardly silent. Mechanical lifters for 16 valves on a 4 cyl. to start with.
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Old 10-23-2016, 11:19 PM   #8
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Quote:
Originally Posted by sailor View Post
Injectors aren't exactly quiet....

These aren't particularly noisy, but hardly silent. Mechanical lifters for 16 valves on a 4 cyl. to start with.
Well the "tick tick tick" that I'm hearing doesn't match sound i hear from the fuel rail or valve cover. It's coming from deep within engine. I'm not fully versed in engine science, but i know what the valve chatter sounds like and the distinctive injector noises. Perhaps I'm missing something (likely)
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Old 10-24-2016, 09:47 PM   #9
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Try unplugging the vacuum line to the actuator & plug it, bet the noise goes away. Really rare to have the engine go unless its low on oil & takes out the rod bearings....
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