SOURCE: What is the spark plug gap for a 1999 Suburban
first off u should use ac delco platnum! wen u open the hood look for the tag that says catalyst it will say engine size ect it will tell you the proper gap!
SOURCE: changing spark plugs on saab 93 turbo 2.0
to replace the spark plugs you need to remove the ignition cassette which is held in with 4 t-30 screws and the plugs are underneath that.
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