Fuel Injection Pump on Certain C4.4 and C7.1 Generator Sets {1251, 1290} Caterpillar

Electric Power Generation

C4.4 DE110E2 (S/N: GTH1-UP)

C4.4 DE88E0 (S/N: EC91-UP; GT91-UP)

C7.1 DE200E0/DE (S/N: GTP1-UP; ECW1-UP)

DE150E0 (S/N: GTW1-UP; GTY1-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 some instances of issues with the following fuel injection pumps:

The issue may be reported as low engine power or the high idle speed may be inconsistent. Most issues have been reported below 200–300 hours of service.

Solution

Note: Do not attempt to adjust the fuel pump or repair the fuel pump.

Install a replacement fuel pump of the same part number. Refer to Disassembly and Assembly, Fuel Injection Pump - Remove and Disassembly and Assembly, Fuel Injection Pump - Install for the correct procedure.

Retain the removed fuel pump for 30 days. The fuel pump will be requested for return using the Send It Back (SIB) process.