My Cats needed replaced after doing so I begun to get mis fires in cylinder 1 then progressed to cylinders 3,5,7 what steps should I start with to diagnose the problem?
What is your question?
At first the misfire was come and go but now getting no spark in cylinders 1,3,5,7
What makes this problem better or worse?
N/A
How long has your 2000 Chevrolet Silverado 1500 had this problem?
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