C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Do i need to clean my plenum??

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Old Nov 4, 2003 | 08:11 PM
  #1  
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Ras119
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Default Do i need to clean my plenum??

I just pulled my throttle body off, cleaned it thoroughly, now, am I done? Do i need to take off the plenum (if thats what the whole metal thing in front of the distributor with the metal pipes heading down towards the heads are)? It would seem to me that that area should be cleaned as well, I saw an archive about using long brushes, I dont know how hard it is to take it off but seems like it would be easier to do it that way. Any help???


:confused: :confused: :confused:
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Old Nov 5, 2003 | 10:23 AM
  #2  
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Default Re: Do i need to clean my plenum?? (Ras119)

I guess it depends what you call dirty. I suspect they all will have a dark film in them but if it’s crusty it might be a good idea. I would not use a brush though, even with a vacuum you could not prevent debris from being sucked down your intake :( The plenum is only kind of tough to remove the first time (learning curve) after that it’s pretty easy.
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Old Nov 5, 2003 | 10:48 AM
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Default Re: Do i need to clean my plenum?? (Ras119)

cleaned mine by hand... can be done but if i had to do it again, i'd remove them....
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Old Nov 5, 2003 | 11:03 AM
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Default Re: Do i need to clean my plenum?? (Ras119)

When cleaning the carbon buildup in the TB it isn't necessary to clean the plenum.

If you decide to clean the plenum, remove it.
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