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Why would number 2 and 3 plugs not be firing if you have good compression good fuel pressure new plugs wires cap and rotor and valves are not cracked or loose on a 1994 350 in a Chevy suburban?
Wiki User
∙ 15y ago
You wouldn't have good compression if the valves were damaged or not seating. If they are not firing as in no spark at all, and the fact that these cylinders are on opposite sides of the engine I would say it has to be the cap. Inspect the inside and the outside of the cap very thoroughtly looking for any blackish lines to confirm this or take it back to the parts store and tell them it is defective is my reccomendation.
Wiki User
∙ 15y ago
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