FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
MODEL NO.: 3126E HYDRAULICALLY CONTROLLED ELECTRONICALLY ACTUATED UNIT INJECTED DIESEL EINGINES WITH HIGH EFFICIENCY PUMPS (HEP8) PRODUCED BY CATERPILLAR BETWEEN JUNE AND SEPTEMBER 2002 FOR USE ON MEDIUM DUTY ON-HIGHWAY ENGINES. THE PUMP COMPONENTS MAY EXPERIENCE A HIGH PRESSURE SEAL FAILURE WHICH CAN RESULT IN A SHORT PERIOD OF ROUGH RUNNING AND SUBSEQUENT ENGINE STALL DUE TO A LOSS OF INJECTION ACTUATION PRESSURE.
Remedy: OWNER NOTIFICATION BEGAN DECEMBER 23, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT CATERPILLAR AT 1-800-447-4986.
2,636 vehicles affected
ENGINE AND ENGINE COOLING:ENGINE:DIESEL
EQUIPMENT DESCRIPTION: MECHANICALLY UNIT INJECTED DIESEL ENGINES. THE GOVERNOR OF THE ENGINE CONTROLS THE UNIT INJECTOR FUELING BY WAY OF A CONTROL ASSEMBLY. IN THIS ASSEMBLY, A LINK TO THE GOVERNOR IS JOINED TO THE CONTROL ROD USING A RIVET. THIS RIVET CAN LOOSEN AND THEN WEAR RESULTING IN ENGINE SPEED INSTABILITY.
Remedy: DEALERS WILL INSPECT THE CONTROL ASSEMBLY AND REPLACED IF NECESSARY.
33,700 vehicles affected