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Old 08-28-2012, 10:42 PM   #1
WSkobra
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intake manifold butterfly flap issues

I did some research on the dtec focus about compression ratios and came across an article that stated that there is a major fault in the materials of the plastic manifold. Apparently the butterfly flaps will eventually break out and get sucked into the motor and destroy the motor. Was wondering if anyone has had this issue. I am trying to find a way to stick this issue on Ford if this is a known problem on our motors. Mazda had the same issue with the manifold on their Mazda 3. Yet Mazda and Ford shared the same technology on these motors which included the manifold and Mazda put a recall out for it but Ford won't. If you had this issue let's hear what you have to say about it.


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Old 08-28-2012, 10:52 PM   #2
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ive had something quite similar in a way, on the passenger side of the manifold there was a small plastic cap holding the rod in place, long story short cap fell out causing air leak. went to the dealer for replacement and the new one ended up not having those flaps. not sure if it is because of the flaps coming loose and causing failure.
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Old 08-29-2012, 02:25 AM   #3
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These flaps I am talking about are inside each runner of the intake manifold. You can't visually see them one bit. These flaps control your air/fuel ratio. Dealer says I have to buy the whole intake manifold assembly in order to fix this small problem. I don't see the need of replacing the manifold if these flaps were designed to be removed if damaged. This tells me they knew about the problem with the cheapness of the manifold. I believe its just their way of trying to make more money off these cheaply made cars.
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Old 08-29-2012, 08:45 AM   #4
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These are tumble flaps, there are threads here about these, and let us know if u get a recall on it.
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Old 08-29-2012, 10:06 AM   #5
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not mentioned here but just so you know it is just in the 2.3L, so 2.0L does not have the Flaps
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Old 08-29-2012, 09:22 PM   #6
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not mentioned here but just so you know it is just in the 2.3L, so 2.0L does not have the Flaps
Both the 20 & 23 use imrc= aka Tumble flaps. The 23 also has imrc similar to SVT's, but is vacum controlled instead of electric motor controlled as SVT's. The only manifold that doesn't have tumble flaps are the escape manifolds. Why I have no idea. There are threads all 'bout this, hit up the search. Lots & lots of great info.
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Old 10-01-2012, 01:40 AM   #7
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not mentioned here but just so you know it is just in the 2.3L, so 2.0L does not have the Flaps
Yes both duratec motors use them. I know this cause I can hear the damn things in each runner on the manifold.
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Old 10-01-2012, 06:49 AM   #8
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Yes both duratec motors use them. I know this cause I can hear the damn things in each runner on the manifold.
You can buy a new one from Ford for $200. or you can remove them altogether but you'd need a tune, if you remove them.
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Old 10-02-2012, 01:48 AM   #9
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You can buy a new one from Ford for $200. or you can remove them altogether but you'd need a tune, if you remove them.
I am actually not going to replace the manifold or remove them. There are replacement flaps which is the cheapest way to fix the problem. I am just going to be replacing the whole motor. I also have cylinder head issues and its just not worth paying $900 for a head from the dealer when I can buy a complete motor with 15k miles om it for $1,250.
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Old 10-02-2012, 09:44 AM   #10
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I would have added a 23 motor

Quote:
Originally Posted by WSkobra View Post
I am actually not going to replace the manifold or remove them. There are replacement flaps which is the cheapest way to fix the problem. I am just going to be replacing the whole motor. I also have cylinder head issues and its just not worth paying $900 for a head from the dealer when I can buy a complete motor with 15k miles om it for $1,250.
I woundn't pay $900. for a head either. It would have been a great time to upgrade to a 23 motor. Replacement tumble flaps= I've never heard of that before. If you want replacement flaps, Ford sells the whole intake manifold.
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