2001 Cadillac Deville vacuum leak

2001 CADILLAC DEVILLE
112,000 MILES • V8 • FWD • AUTOMATIC
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SMILEY86
  • MEMBER
  • 1 POST
4.6L engine - I found a vacuum leak at the plenum (rubber gasket) between the intake manifold (right hand side) and the throttle body (Sits on top of the water pump housing).
My question is - what do I remove to get the new gasket in (GM part #12555840)? Throttle body or plastic intake manifold? I assume I will need additional gaskets know matter which way I go. Thanks for the help.
Sep 9, 2009 at 1:45 PM
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FACTORYJACK
  • ✓ASE Certified Mechanic
  • 4,159 POSTS
  • ASE Certified Mechanic
Remove the plastic intake. You can replace the intake seals, but I have reused them with no problems. You will need to remove the fuel rail from the intake.
Sep 10, 2009 at 10:43 PM
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