# Service bulletin PIP4949D

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.

- Type: Service bulletin
- NHTSA id: 10112157
- Published by NHTSA: 2017\-08\-15
- Manufacturer's number: PIP4949D
- Manufacturer's date: 2014\-08\-07
- NHTSA component: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; FUEL SYSTEM, GASOLINE

## NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles that have a hard start or a no start. Technician may find Diagnostic Trouble Code DTCs P0087, P0088, P0191 or P128E. Technician will need to follow all Service Information diagnose for the Diagnostic Trouble Code. If the current Service Information diagnostic has led to Fuel Injection Pump replacement, Fuel Pressure Regulator 1 must be inspected for magnetic metal debris. If there is a questionable amount of magnetic debris found on Pressure Regulator 1 remove the Fuel Rail Pressure Sensor and/or Fuel Pressure Regulator 2 to inspect for magnetic metal debris. If technician will need to replace all of the parts listed under the latest version of PIP4949 found in the Service Forms section of Global Connect if debris is found. Clean and flush all fuel chassis lines, filter pipes, and other engine mounted fuel system pipes not replaced. Also the fuel filter housing must be cleaned with a new fuel filter installed. Then the fuel tank and fuel sender must be cleaned and flushed.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10112157-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10112157-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Fuel system, Fuel injection, Fuel pump

## Trouble codes named

P0087, P0088, P0191, P128E

## Vehicles listed

- 2010 to 2015 CHEVROLET EXPRESS
- 2010 to 2015 CHEVROLET SILVERADO
- 2014 CHEVROLET SILVERADO 1500
- 2014 CHEVROLET SILVERADO 2500
- 2010 to 2011 FOREST RIVER SIERRA
- 2013 to 2015 FOREST RIVER SIERRA
- 2010 to 2015 GMC SAVANA
- 2014 GMC SIERRA 1500
- 2014 GMC SIERRA 2500
- 2010 to 2013 GMC SIERRA DENALI

## Other bulletins for the same vehicles and component

- [PIT5110D](/bulletins/10253076.md), 2024-04-15, Service bulletin: FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP. HI
- [140604004B](/bulletins/10246498.md), 2023-12-11, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PRESSURE/TEMPERATURE SENSOR; UNKNOWN OR OTHER; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:MANIFOLD PRESSURE \(MAP\) SENSOR. Various Engine Noises During Cold Start and Warm Engine Operation
- [140604004A](/bulletins/10246497.md), 2023-12-11, Service bulletin: UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PRESSURE/TEMPERATURE SENSOR; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:MANIFOLD PRESSURE \(MAP\) SENSOR. Various Engine Noises During Cold Start and Warm Engine Operation
- [18NA235](/bulletins/10212609.md), 2022-05-31, Service bulletin: FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. This information bulletin advised the tech of possible use of low fuel quality and the possible ramifications in performance in regards to the customers concerns.
- [04\-06\-04\-051F](/bulletins/10209734.md), 2022-04-05, Service bulletin: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; EQUIPMENT:MECHANICAL. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- [20NA098](/bulletins/10176632.md), 2020-06-22, Service bulletin: ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. This informational bulletin explains to the tech on how to order a new fuel injector by matching the part number on the part and ordering it from the EPC.
- [16NA383](/bulletins/10176607.md), 2020-06-22, Service bulletin: ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build\-up.
- [16NA383](/bulletins/10171878.md), 2020-03-02, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build\-up.
- [PIE0523](/bulletins/10161977.md), 2019-07-01, Service bulletin: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; FUEL SYSTEM, GASOLINE. This engineering informational bulletin is requesting information for vehicles that has had the fuel injection pump replaced and is still within warranty.
- [PIP5596](/bulletins/10147348.md), 2018-11-13, Service bulletin: FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. 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.

JSON: [/v1/bulletins/10112157](/v1/bulletins/10112157)

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