ENGINE CRANKS BUT WILL NOT START - NO FUEL PRESSURE. Cadillac Concours 1995

For 1990-2009 cars

# ENGINE CRANKS BUT WILL NOT START - NO FUEL PRESSURE

#### SUBJECT: ENGINE CRANKS BUT WILL NOT START - NO FUEL PRESSURE (REPLACE MODULE FUEL LEVEL SENDER AND JUMPER HARNESS)

#### MODELS: 1994-95 CADILLAC CONCOURS, DEVILLE, ELDORADO, SEVILLE WITH 4.6L OR 4.9L ENGINE (VINS 9, Y, B - RPOS L37, LD8, L26)

#### VIN BREAKPOINTS:

1994 - 1995 - MODEL BUILT AFTER BUILT PRIOR TO ===== =========== ==============

CONCOURS RU286112 SU261519 DEVILLE RU286106 SU261512 ELDORADO RU619245 SU612148 SEVILLE RU836054 SU818790

#### CONDITION:

SOME OWNERS MAY COMMENT THAT ENGINE WILL CRANK BUT WON'T START - NO FUEL PRESSURE.

#### CAUSE:

A BENT OR DAMAGED TERMINAL IN CAVITY "C" OF THE JUMPER HARNESS FROM THE MAIN BODY HARNESS TO THE MODULAR FUEL SENDER COULD PRODUCE A HIGH RESISTANCE CIRCUIT. THIS MAY LEAD TO AN INTERMITTENT OPEN IN THE MODULAR FUEL SENDER GROUND CIRCUIT.

#### CORRECTION:

PERFORM VISUAL INSPECTION OF THE SENDER COVER TO VERIFY THAT NO DAMAGE HAS OCCURRED TO THE COVER. WHEN THE ABOVE SYMPTOM IS PRESENT, VERIFY THE CONDITION BY CHECKING THE FUEL SYSTEM PRESSURE LOSS. REFER TO DIAGNOSTICS IN SECTION 6C OF THE APPROPRIATE SERVICE MANUAL.

IF DIAGNOSIS INDICATES FUEL PRESSURE LOSS, A POSSIBLE CAUSE IS DAMAGE TO THE MODULAR FUEL LEVEL SENDER WIRING OR DAMAGE TO THE JUMPER HARNESS TERMINAL. IF THE SENDER PASS-THROUGH CONNECTOR SHOWS SIGNS OF DAMAGE, REPLACE THE JUMPER HARNESS AS WELL AS THE MODULAR FUEL SENDER.

#### PARTS INFORMATION:

PART NUMBER DESCRIPTION =========== ===========

25029982 MODULAR FUEL LEVEL SENDER 12107779 JUMPER HARNESS

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

#### WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION NUMBER: L1200 USE PUBLISHED LABOR OPERATION TIME.

FIGURES: 0 ATTACHMENTS: 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.

COPYRIGHT 1995 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.