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July 12, 2017 Service bulletin

This Preliminary information communicatesIn ambient temperatures 100F (37.7 C)degrees or higher, DTCs...

Chevrolet technical service bulletin PIP5507A for 2013-2017 Chevrolet Malibu, 2014 Chevrolet Silverado 1500 and 2013-2017 Chevrolet Impala and others.

Bulletin number
PIP5507A
Component
Fuel system, other: delivery: fuel pump
Summary
This Preliminary information communicatesIn ambient temperatures 100F (37.7 C)degrees or higher, DTCs P2635 and/or P018B may set.The vehicle may also exhibit a hesitation or stalling condition.Excessively Hot and sustained ambient temperatures over 100F (37.7 C) degrees Mainly in TX, AZ, UT, NV, CA, NM (could be any state) causingVapor buildup in fuel feed line.Customers can be advised to utilize fuels with octane levels greater than 91, Refrain from extended idleing periods if possible, park vehicles in covered garage.Replacing the fuel pump will not repare this concern.

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