Top end work.

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Cadillac Catera and Cimarron Forum Discussion, Top end work. in Past Cadillac Vehicle Discussion; Hey guys. I plan on replacing the valve cover gaskets here shortly, and was wondering if I should go ahead ...
  1. #1
    CodyCatera is offline Cadillac Owners Member
    Automobile(s): 01' Cadillac Catera
    Join Date
    Sep 2013

    Top end work.

    Hey guys. I plan on replacing the valve cover gaskets here shortly, and was wondering if I should go ahead and replace anything else. I know I need the gasket themselves, O rings for the valve covers and I was gonna replace the plenum O rings while I was at it. I also plan on cleaning the crankcase breather while I can reach it and since the plenum will be off ill clean the throttle body as well. Anything else I should clean/replace while the top end is apart?

    A side note Ive noticed oil on my spark plugs and was told there is a gasket way down in the valve area that will stop the oil from seeping onto the plugs.

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  3. #2
    IvoryWhiteCatera's Avatar
    IvoryWhiteCatera is offline Cadillac Owners Fanatic
    Automobile(s): 1998 Catera (SOLD)
    Join Date
    Apr 2011

    Re: Top end work.

    Upper intake gaskets, lower intake gaskets. Oil cooler if you notice any symptoms (search the forum for more info on this). If the valve covers are done right, there should be no oil in the spark plugs. Cleaning the crankcase breather will also help prevent this problem in the future.

  4. #3
    elvin315's Avatar
    elvin315 is offline Cadillac Owners Connoisseur
    Automobile(s): Platinum 2001 Cadillac Catera Sport
    Join Date
    Jan 2007
    Catskill, NY

    Re: Top end work.

    Replace the Heater Bypass Valve while you're that deep into the engine bay. If it hasn't leaked yet, trust me it will. There's even a thread showing how to relocate it for easier future access. I've had to replace mine twice in 7 years so next time I'm moving it to where I can change it without cursing and yelling. Well, maybe a little cursing. Catera ownership just wouldn't be the same without that.

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