VEHICLE STALL OR RUNS OUT OF FUEL WHILE GAUGE SHOWS FUEL. Buick Roadmaster 1995

SUBJECT: VEHICLE STALL OR RUNS OUT OF FUEL WHILE GAUGE SHOWS FUEL REMAINING (REPAIR/REPLACE FRESH AIR HOSE/CANISTER AND BRACKET)

MODELS: 1994-95 BUICK ROADMASTER 1994-95 CHEVROLET CAPRICE, IMPALA SS 1994-95 CADILLAC FLEETWOOD WITH 4.3L AND 5.7L ENGINES (VINS W, P - RPOS L99, LT1)

CONDITION:

SOME VEHICLES MAY STALL OR RUN OUT OF FUEL BUT FUEL GAUGE SHOWS FUEL REMAINING.

CAUSE:

THE FUEL VAPOR CANISTER FRESH AIR SYSTEM MAY BE RESTRICTED.

CORRECTION:

CHECK FOR RESTRICTIONS IN THE FUEL VAPOR FRESH AIR SYSTEM.

1) REMOVE BOTH VACUUM LINES FROM THE EVAP CANISTER PURGE SOLENOID, CONNECT THEM TOGETHER AND TEE IN A VACUUM GAUGE. THE SOLENOID IS LOCATED ON THE RH (RIGHT HAND) SIDE OF THE INTAKE MANIFOLD NEAR THE NUMBER FOUR INJECTOR.

2) START THE ENGINE AND LET IT IDLE. NOTE: THE ENGINE MAY STALL UNTIL ALL THE FUEL VAPORS ARE DRAWN OUT OF THE CANISTER.

3) OBSERVE THE VACUUM GAUGE, IF MORE THAN 16 INCHES OF VACUUM IS INDICATED, THEN THERE IS A RESTRICTION EITHER IN THE CANISTER OR THE FRESH AIR HOSE.

4) INSPECT THE FRESH AIR HOSE FOR KINKS OR POSSIBLE RESTRICTIONS. IF ANY ARE FOUND, CORRECT WHERE NEEDED. IF THE FRESH AIR HOSE IS DAMAGED, REPLACE IT.

5) IF THE FRESH AIR HOSE IS LOCATED IN THE RH FENDER WELL, RELOCATE IT TO THE FRONT RADIATOR SUPPORT AREA. SEE FIGURE 1.

6) IF THE FRESH AIR HOSE IS NOT KINKED OR DAMAGED AND THERE IS STILL A RESTRICTION, REPLACE THE CANISTER AND BRACKET.

PARTS INFORMATION

PART NUMBER DESCRIPTION 12553048 CANISTER BRACKET 17113148 CANISTER 12554296 FRESH AIR HOSE

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION

LABOR OPERATION:

LABOR TIME: USE PUBLISHED LABOR OPERATION TIME.

INSERT FIGURE SPOLT101

FIGURE 1

FIGURES: 1 ATTACHMENTS: 0

1. RADIATOR SUPPORT 2. FRESH AIR HOSE 3. FUEL VAPOR CANISTER

Object Number: 108244 Size: FS

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.