High-Pressure Fuel Pumps Are Failing on Certain C9 and C9.3 Engines {1714} Caterpillar

Articulated Truck

725C (S/N: TFB1-UP)

Excavator

336E (S/N: KED1-UP; CMR1-UP)

336E H (S/N: HDW1-UP)

336E L (S/N: YCE1-UP; TEG1-UP; FJH1-UP; GTJ1-UP; JRJ1-UP; YEP1-UP; BZY1-UP)

336E LH (S/N: RZA1-UP)

336E LN (S/N: TMZ1-UP)

336E LNH (S/N: SSL1-UP)

336F L (S/N: RKB1-UP; SSN1-UP; WTZ1-UP)

Forest Machine

568 (S/N: YJX1-UP)

568 LL (S/N: BRB1-UP)

Generator Set

C9 MARINE GEN (S/N: SJB1-UP)

C9 MARINE GS (S/N: C9A1-UP)

Industrial Engine

C9.3 (S/N: CS91-UP)

Marine Engine

C9 (S/N: C9Y1-UP)

C9 MARINE (S/N: C9B1-UP; CSN1-UP; X9X1-UP; Z9X1-UP; X9Y1-UP)

Mobile Hydraulic Power Unit

336E MHPU L (S/N: DSZ1-UP; T3Z1-UP)

Motor Grader

12M Series 2 (S/N: F9B1-UP; F9M1-UP; R9P1-UP; R9S1-UP)

12M Series 3 (S/N: N9B1-UP; N9F1-UP; N9P1-UP; N9R1-UP)

140M Series 2 (S/N: M9D1-UP; R9G1-UP; M9J1-UP; R9M1-UP)

140M Series 3 (S/N: N9D1-UP; N9G1-UP; N9J1-UP; N9M1-UP)

160M Series 2 (S/N: M9E1-UP; M9K1-UP; R9L1-UP; R9T1-UP)

160M Series 3 (S/N: N9E1-UP; N9K1-UP; N9L1-UP; N9T1-UP)

Track-Type Tractor

D6T LGP (S/N: ZJB1-UP; PLR1-UP; JRW1-UP)

D6T LGP VPAT (S/N: KSB1-UP; EJJ1-UP)

D6T XL (S/N: GMK1-UP; TSM1-UP)

D6T XL VPAT (S/N: DTD1-UP)

D6T XW (S/N: SLJ1-UP)

D6T XW VPAT (S/N: RCW1-UP)

D7E (S/N: TAN1-UP)

D7E LGP (S/N: TJA1-UP)

Wheel Loader

966K (S/N: PBG1-UP; TFS1-UP)

966K Series XE (S/N: NGX1-UP)

966M (S/N: DYC1-UP; KJP1-UP)

972K (S/N: PEM1-UP; Z4W1-UP)

972M (S/N: A8P1-UP)

Wheel Tractor

627H (S/N: DBW1-UP)

Wheel Tractor Scraper

627K (S/N: WTC1-UP)

Introduction

The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem

There have been reports from the field that high pressure (HP) fuel pumps are failing.

Solution

Follow the following when troubleshooting a E398 and E499 fault code:

-When submitting a claim story in SIMSi, include the results of the fuel system functional test before the pump was replaced as well as after.

-Include the serial number of the failed pump which is located on top of the injector solenoid.

Note: Fuel filters should always be changed and a new fuel system functional test ran before changing out the fuel pump. Caterpillar will use this information to make the diagnostics and troubleshooting more accurate.