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Why would the engine run fine with a 303 code ?  Where is the # 3 cylinder located on the engine block?
Vehicle: 2001 Buick Enclave
asked by

1 Answer

P0303 Misfire cylinder 3

In the back middle cylinder. You may have to check the spark plug condition, or swap the sparkplug to a different easier cylinder if the misfire move replace the sparkplug.

answered by (10.8k points)
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