plenum gasket or other problem????

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gesjr

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2008
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5.7 hemi
So today i pulled my throttlebody off to clean it and while i was at it i figured i would check the bottom of the intake for the telltale puddle of oil that is synonomous with a blown plenum gaket . What i found was the throttlebody blades and upper intake where the tb bolts on were covered in oil and tarnish but the bottom of the intake appeared spotless. I am gonna use the magnet on a stick test to check to see if my plenum plate has been replaced tomorrow. Other than a gasket is there any other reason for my tb blades to be oil coated ? Also on some other places ive been reading that the plenum plate bolts are too long and thats more to blame(bottoming out) than a steel plenum plate blowing the gaskets. Opinions on this ? A dodge tech wrote he had replaced 35 blown plenum gaskets without changing the plate,just used shorter bolts and has never had a return.
 
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gesjr

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No suggestions? Anyone????
 
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gesjr

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What im wondering is with no puddle of oil in the intake just on the tb blades could it just be a pcv valve?
 

HemiBabe

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I know my TB was dirty as crap, I think they just get that build up on them over time, you can get some throttle body cleaner from the auto parts store and clean it right up
 

Bigtman07

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It may just be blowby from the pcv valve. Always cheap and easy place to start.

Sent from my apple torching Droid.
 
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