ENGINE LOW POWER IN COLD WEATHER. GMC Truck GMC MD Conventional (C Model) 1990

SUBJECT: ENGINE LOW POWER IN COLD WEATHER (REPLACE PRIMARY FUEL FILTER)

MODELS: 1990-96 CHEVROLET KODIAK AND GMC TOPKICK 1990-97 B7 SCHOOL BUSSES 1997 C SERIES MEDIUM DUTY TRUCKS WITH 3116 DIESEL ENGINE (VIN J - RPO LXO)

CONDITION:

SOME CUSTOMERS MAY REPORT LOW ENGINE POWER IN COLD (BELOW 20 DEGREES F) WEATHER.

CAUSE:

THE SPIN-ON PRIMARY FUEL FILTER MAY BE PLUGGED DUE TO WAX FORMATION IN THE DIESEL FUEL.

CORRECTION:

USING THE PART NUMBERS LISTED BELOW, REPLACE THE PRIMARY SPIN-ON FUEL FILTER FOLLOWING THE PROCEDURE IN SECTION 6C OF THE APPROPRIATE MEDIUM DUTY TRUCK SERVICE MANUAL.

THESE FILTERS HAVE A REVISED NYLON SOCK THAT STRETCHES AS FUEL WAX ACCUMULATES AND WILL ELIMINATE OR REDUCE FUEL STARVATION DUE TO WAX PLUGGING THE FILTER IN COLD WEATHER.

PARTS INFORMATION:

P/N DESCRIPTION QTY 15152281 FILTER, FUEL (PRIMARY) 1 TOPKICK/KODIAK + C SERIES

15154152 FILTER, FUEL (PRIMARY) 1 B7 SCHOOL BUS

PARTS ARE EXPECTED TO BE AVAILABLE FROM GMSPO ON FEBRUARY 27, 1997.

WARRANTY INFORMATION FOR VEHICLES THAT QUALIFY FOR FUEL FILTER REPLACEMENT UNDER WARRANTY, USE:

LABOR OP DESCRIPTION LABOR TIME L0730 FILTER ELEMENT, FUEL USE PUBLISHED (DIESEL)-REPLACE LABOR OPERATION TIME

IMPORTANT: LABOR OPERATION IS CODED TO BASE VEHICLE COVERAGE IN THE WARRANTY SYSTEM.

FIGURES: 0

CAPTIONS: 0

GENERAL MOTORS BULLETINS ARE INTENDED FOR USE BY PROFESSIONAL TECHNICIANS, NOT A "DO-IT-YOURSELFER". THEY ARE WRITTEN TO INFORM THOSE TECHNICIANS OF CONDITIONS THAT MAY OCCUR ON SOME VEHICLES, OR TO PROVIDE INFORMATION THAT COULD ASSIST IN THE PROPER SERVICE OF A VEHICLE. PROPERLY TRAINED TECHNICIANS HAVE THE EQUIPMENT, TOOLS, SAFETY INSTRUCTIONS AND KNOW-HOW TO DO A JOB PROPERLY AND SAFELY. IF A CONDITION IS DESCRIBED, DO NOT ASSUME THAT THE BULLETIN APPLIES TO YOUR VEHICLE, OR THAT YOUR VEHICLE WILL HAVE THAT CONDITION. SEE A GENERAL MOTORS DEALER SERVICING YOUR BRAND OF GENERAL MOTORS VEHICLE FOR INFORMATION ON WHETHER YOUR VEHICLE MAY BENEFIT FROM THE INFORMATION.