WenmarOpen by Wenmar Pro

Service bulletin PIP5610

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10151820
Published by NHTSA2018-12-17
Manufacturer's numberPIP5610
Manufacturer's date2018-11-05
NHTSA componentFUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; EQUIPMENT

NHTSA's summary

This Preliminary information communicates the possibility of the high pressure fuel pump roller follower pin walking out and making contact with cylinder head causing the ignition timing to be serverly retarded on acceleration causing lack of power, sluggishness or hesitation on acceleration.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories, Fuel system, Fuel pump

Vehicles listed
CHEVROLET MALIBU2016, 2017, 2018, 2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
18V3580002018-05-31. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
PIP55962018-11-13. Service bulletin. This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.
18NA1132018-05-21. Service bulletin. This bulletin provides procedure information for hard to fuel and/or fuel filling station nozzle shuts off repeatedly due to the vapor generation reduction device inside the fuel filler pipe.
16-NA-1542018-04-23. Service bulletin. This technical bulletin provides diagnostic information for malfunction indicator lamp (MIL) illuminated, DTC U18A2 and/or P018B.
PIP5507B2017-08-15. Service bulletin. 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.
PIP5507A2017-08-15. Service bulletin. 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.
16-NA-2252017-08-15. Service bulletin. This technical bulletin provides a procedure to replace the fuel pump module assembly if the DTC P2635 and/or P018B are set.
16-NA-2252017-07-18. Service bulletin. This technical bulletin provides a procedure to replace the fuel pump module for low fuel pressure and to correct the customers concern of the MIL on.
16NA2252016-10-14. Service bulletin. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPLACE THE FUEL PUMP MODULE FOR LOW FUEL PRESSURE AND TO CORRECT THE CUSTOMERS CONCERN OF THE MIL ON.