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Q:

hesitates when stepping on the gas on 2007 Chevrolet Express 1500

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Engine seems to be missing when trying to accelerate . We have replaced fuel pump and 02 sensor - also check engine light is one - could this be an electrical problem?
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