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Replacing plenum and plenum gasket
1999 Buick Park Avenue

REPLACING PLENUM AND PLENUM GASKET

(1999 Buick Park Avenue)
When the lower intake gasket is replaced do I have to replace the plenum as well and also the plenum gasket?
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Popular Answer
on March 20, 2011
Definitely replace all of the gaskets, but only replace either the upper and/or lower manifold or plenum if they are defective, such as cracked, leaking, warped, EGR system damaged etc.
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General Diagnosis
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on March 20, 2011
Definitely replace all of the gaskets, but only replace either the upper and/or lower manifold or plenum if they are defective, such as cracked, leaking, warped, EGR system damaged etc.
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