GM Buick/Oldsmobile/Pontiac/Full-Size 1975-1990 Repair Guide

Air Cleaner Element and PCV Filter

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See Figures 1, 2 and 3

REMOVAL & INSTALLATION



  1. Remove the wing nut(s) from the top of the air cleaner assembly and lay it aside.
  2.  
  3. Remove the air cleaner cover and gently lift the air cleaner element out of the housing without knocking any dirt into the carburetor.
  4.  
  5. Pull the PCV filter out of the retainer.
  6.  
  7. Wipe the inside of the air cleaner housing with a paper towel or clean rag.
  8.  
  9. Clean the inside of the PCV filter retainer and install a new PCV filter element.
  10.  
  11. Install a new air cleaner element.
  12.  
  13. Replace the air cleaner cover and install the wing nut(s).
  14.  



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Fig. Fig. 1: Remove the wing nut and air cleaner cover



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Fig. Fig. 2: Remove and replace the air cleaner element if it is dirty



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Fig. Fig. 3: On this model, the PCV filter can be removed by disconnecting the hose and pulling the retaining clip

 
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