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Chevrolet S10 excessive cranking in the morning, surging and missfires

 
Chevrolet S10 Problem
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Model Year Affected: 1996

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    hard starting after several hours and upon start up, engines missfires and runs rich

    Possible fuel pump regulator failure under the upper intake leaking fuel directly into the intake system.

    You must replace the regulator assembly and possibly the spider( injector cluster) to resolve the problem. Allowing the engine to run like this for an extended period could result in cylinder wall wash down resulting in internal engine damage.

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