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Old 01-20-2014, 01:14 AM   #1
Fangren
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Intake Mani - Tumble Flaps Help plox

Anyone know if spraying Intake/TB cleaner heavily into TB will clean out tumble flaps? or better to remove Manifold and do it hard way.

I can hear clearly the noise coming from my manifold and have a power loss until 3000rpms.

Either they are so clogged that its restricting my airflow quite a bit or they are damaged as well as other parts of my Manifold.

I know atleast one actuator still works. Cant tell if the other does as there is no difference when i unplug it.

Im not looking for a replacement that requires tuning etc But if anyone has a "good" stock one or help on the issue im more than interested!

187000 Miles! Lets keep her rolling.
Compression on all 4 Cylinders are at 106-111 so im set on that, plugs and all 3 o2s + both cats/mani are brand new.


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Old 01-20-2014, 03:15 PM   #2
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If you can hear noise from the manifold cleaning the tumbler flaps won't do any good, more than likely they have started to deteriorate on the ends that hold the rod into the manifold and the little pieces of plastic have been eaten by your engine. best thing to do would be delete the tumbler flaps or get a new manifold if your not trying to put on a manifold that would require a tune. If you look in my build thread you can see pics of how bad my tumbler flaps were and where they come apart at.
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Old 01-21-2014, 06:27 AM   #3
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If you can hear noise from the manifold cleaning the tumbler flaps won't do any good, more than likely they have started to deteriorate on the ends that hold the rod into the manifold and the little pieces of plastic have been eaten by your engine. best thing to do would be delete the tumbler flaps or get a new manifold if your not trying to put on a manifold that would require a tune. If you look in my build thread you can see pics of how bad my tumbler flaps were and where they come apart at.
This^^^^^^^^^^^. To add since you have the i/m off, replace the pcv hose too.
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Old 02-02-2014, 08:40 PM   #4
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This^^^^^^^^^^^. To add since you have the i/m off, replace the pcv hose too.
Well now that the weather is above 0 degrees F I got to work.

Tore off IM cleaned out replacement IM and checked for faults in original. Turns out my tumbles flaps were working perfect. However the sleeves are worn. By sleeves i mean the outer ring the inside of the Gasket touches. Like others i did not have to remove anything except the cooling fan shroud assembly. The only major hitch in this process was my dipstick retainer bolt (lower) did not breka loose, became stripped then i proceeded to just cut the clip off.

Now to clean up the replacement with new gaskets and figure out how to put it all back in. that and how the heck i get the pcv valve off.

Ill probably find a how to on here somewhere.
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Old 02-03-2014, 10:43 AM   #5
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Well the car works but only when i press on the throttle. Car wont idle, just stalls smoothly. Im guessing its not getting airflow for idle while throttles closed so IAC valve most likely?
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Old 02-03-2014, 11:24 AM   #6
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swapped IAC out and tightened intake boot. idles fine now.
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Old 02-03-2014, 01:44 PM   #7
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I like it when people post the final resolution to their car's problem.
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Old 02-03-2014, 02:51 PM   #8
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I like it when people post the final resolution to their car's problem.
I agree. While this hasnt solved the noise, the noise isnt my major concern as was the drop in gas mileage, and age of manifold. Old one was worn, PCV hose needed to be replaced, PCV valve seemed fine but i replaced anyway. Definately needed a cleaning.

If i just get better mileage out of this ill be happy. I was hoping to restore power in low rpm. example if i am dead stop it takes time for acceleration to kick in, then at higher rpms i get a pull as power climbs suddenly.
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Old 02-03-2014, 06:34 PM   #9
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Please keep us posted on your results, I've been in a similar situation with my mileage and my CEL being intermitant. Im about to get giggy with my IMm so I can replace the PCV and hose, but my hose is NOT very clear yet.

Im hoping to get that extra 100 miles per tank back soon!!!
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Old 02-03-2014, 07:11 PM   #10
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Sounds like you guys need to replace or modify your i/m. As said earlier don't forget to replace your pcv hose.
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