GM Service Manual Online
For 1990-2009 cars only

V-8 FUEL PUMP SQUEAK/KNOCK PUMP REVISION

A NEW FUEL PUMP HAS BEEN RELEASED FOR ALL CURRENT PRODUCTION V8 ENGINES. THIS NEW FUEL PUMP HAS BEEN REVISED BY THE ADDITION OF A BRONZE BUSHING AT THE ROCKER ARM PIVOT. THE SERVICE PACKAGE PART NUMBERS ARE AS FOLLOWS: USAGE C TRUCK LE3, LE9 P TRUCK LT9 WITH AIR CONDITIONING SEO 9C1 & 9C6 "B" AND "G" CARS SERVICE PACKAGE P/N 6471180 USAGE G TRUCK LF3, LE9, LS9 LT9 WITHOUT AIR CONDITIONING SERVICE PACKAGE P/N 6471555 USAGE G TRUCK LF3, LE9, LS9 LT9 C31003-403 SERVICE PACKAGE P/N 6471829 USAGE K TRUCK LE9, LS9 LT9 LT9 C31003-403 SERVICE PACKAGE P/N 6471493 USAGE P TRUCK LT9 WITHOUT AIR CONDITIONING SERVICE PACKAGE P/N 6470779 USAGE "B" AND "G" CARS EXCEPT SEO 9C1 & 9C6 SERVICE PACKAGE P/N 6470422 USAGE "B" CAR LM1 SERVICE PACKAGE P/N 6470310

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.