# Service bulletin PIT5361

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: 10114402
- Published by NHTSA: 2017\-08\-15
- Manufacturer's number: PIT5361
- Manufacturer's date: 2015\-02\-12
- NHTSA component: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

## NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles that may have a hard brake pedal or that increased effort is needed to depress the brake pedal. During the inspection the technician may find engine oil in the vacuum pump. If engine oil is found these parts should be placed the vacuum pump, vacuum Line between the booster and the pump, brake booster, and the master cylinder.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10114402-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10114402-0001.pdf)

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

## Components

Fuel system, Fuel pump

## Vehicles listed

- 2015 CADILLAC ESCALADE
- 2015 CADILLAC ESCALADE ESV
- 2014 CHEVROLET SILVERADO 1500
- 2015 CHEVROLET SILVERADO 2500
- 2015 CHEVROLET SUBURBAN
- 2015 CHEVROLET TAHOE
- 2014 GMC SIERRA 1500
- 2015 GMC SIERRA 2500
- 2015 GMC SIERRA DENALI
- 2015 GMC YUKON
- 2015 GMC YUKON XL

## Other bulletins for the same vehicles and component

- [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.
- [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.
- [17NA335](/bulletins/10134616.md), 2018-04-23, Service bulletin: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. This technical bulletin provides a procedure to replace the fuel pump to correct the MIL concerns.
- [PIP5411F](/bulletins/10123268.md), 2017-11-14, Service bulletin: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that may have hesitation or a stalling condition while in ambient temperatures 100 degrees or higher. Technician may find Diagnostic Trouble Codes P2635 and or P018B set. The dealer is advised to replace the in tank fuel pump module assembly to correct the condition.
- [PIP4949E](/bulletins/10115024.md), 2017-08-15, Service bulletin: FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; FUEL SYSTEM, OTHER:FUEL INJECTION SYSTEM; FUEL SYSTEM, OTHER:FUEL FILTER. 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.
- [PIP5133C](/bulletins/10114728.md), 2017-08-15, Service bulletin: FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; FUEL SYSTEM, OTHER:FUEL INJECTION SYSTEM. This Preliminary Information communication advises the technician that the 6.6L Duramax Diesel Engine Fuel Injection Pump Part numbers 12645102, 12658095 and 12661059 will be placed on a parts restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
- [G\-176945](/bulletins/10114219.md), 2017-08-15, Service bulletin: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. 13331 \- Service Update. Replace the SIDI high pressure fuel pump. The SIDI high pressure fuel pump in these vehicles may have been misbuilt. This could result in extended crank, rough idle, DTCs, MIL for low fuel pressure, and possible loosening or fracture of the pump body\-to\-flange bolts.
- [G\-173146](/bulletins/10114195.md), 2017-08-15, Service bulletin: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. 13259 \- Service Update. Install a new fuel pump assembly. An o\-ring seal in the fuel pump assembly may have been improperly installed. Over time, this may cause a fuel odor and/or seepage.
- [PIP5507B](/bulletins/10114082.md), 2017-08-15, Service bulletin: FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. 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.

JSON: [/v1/bulletins/10114402](/v1/bulletins/10114402)

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