SERVICE REPL. PARTS FOR FUEL PUMPS, STRAINERS, PULSA. & SE. Buick Electra/Park Avenue 1987

SUBJECT: SERVICE REPLACEMENT PARTS FOR FUEL PUMPS, STRAINERS, PULSATORS AND SENDERS

VEHICLES AFFECTED: 1985-93 "C AND H" WITH 3.8L ENGINES

This bulletin is being revised to delete the statement on "strainers", and to clarify the High Pressure Turbine Pump replacement information. The art work is unchanged.

The following chart shows the current service parts for fuel pumps, strainers, pulsators and senders used in 1985- 1993 "C/H" models equipped with 3.8L engines (RPOs LG2, LN3, L27, L67 and LG3) VIN codes "B, C, L, 1 and 3." The (HPTP) High Pressure Turbine Pump replacement comes complete with a rollervane pump and sender assembly, it may also be replaced with the EP-318 pump, however the sender would also need to be ordered (ref. bulletin 906504R**). The Broadcast Codes found on the sender's wiring harness represent production usages and may not match if sending unit has been replaced.

C/H FUEL PUMP APPLICATION CHART FOR 3.8L ENGINES

Service Strainer Pulsator Year Car Production Pump Part AC-Delco Part Part Pump Type Number Number Number Number ---- --- ---------- --------- -------- -------- -------- 1985 "C" Rollervane 25116162 EP-240 25055456 25094266 1985 "C" Nippondenso 25117380 EP-318 25121783 N/A 1986 "C/H" Rollervane 25116162 EP-240 25055456 25094266 1986 "C/H" Nippondenso 25117380 EP-318 25121783 N/A 1987 "C/H" Rollervane 25116162 EP-240 25055456 25094266 1987 "C/H" Nippondenso 25117380 EP-318 25121783 N/A 1988 "H" HPTP 2 25029697 3 EP-338 25055899 25094266 1988 "C/H" Rollervane 25116162 EP-240 25055456 25094266 1988 "C/H" Nippondenso 25117380 EP-318 25121783 N/A 1989 "H" Rollervane 25116167 EP-238 25055456 25094266 1989 "C" Nippondenso 25117380 EP-318 25121783 N/A 1989 "H" HPTP 2 25027120 3 EP-337 25055899 25094266 1990 "H" Rollervane 25116167 EP-238 25055456 25094266 1990 "C/H" Nippondenso 25117380 EP-318 25121783 N/A 1991 "H" Nippondenso 25117380 EP-318 25121783 N/A 1991 "C" Nippondenso 25117380 EP-318 25121783 N/A 1991 "C", SC Nippondenso 25117339 EP-311 25121783 N/A 1992 "C/H" Nippondenso 25117380 EP-318 25121783 N/A 1992 "C/H" SC Nippondenso 25117339 EP-311 25121783 N/A 1993 "C/H" Nippondenso 25117021 EP-305 25121784 N/A 1993 "C/H" SC Nippondenso 25117339 EP-311 25121783 N/A

Sender Part Production Number Broadcast Code ----------- -------------- 25091657 CEY or CEX 25094867 CET or field fix 1 25092727 HEA, HEH, HEG 25094732 CPB, CPC or field fix 1 25092727 HEL or HEM 25094732 CPB or CPC 1 25093316 CPD, CPE or CPP 1 25092727 HEL or HEM 25094732 CPB or CPC 1 25027290 CPK or CPV 25027211 CPL or CPU 1 25094100 CPJ 1 25027290 CPV 25027211 CPU 25027211 CPU 1 25027568 CPZ 1 25027568 CAB 1 25027568 CPZ 1 25027568 CAB 1 25028282 CAC 1 25027568 CAB

1 SENDER WILL COME WITH A STRAINER 2 COMPLETE ROLLERVANE PUMP AND SENDER ASSEMBLY. 3 MAY ALSO USE EP-318 (WILL ALSO REQUIRE A NEW SENDER) SEE BULLETIN CORP REF. NO. 906504R

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.