INFO ON FUEL GAUGE FLUCTUATION CAUSED BY FUEL SENDER. Buick Park Avenue 1997

THIS IS A MONTHLY SERVICE NEWSLETTER ARTICLE. THIS BULLETIN IS NOT INTENDED FOR PUBLICATION.

SUBJECT: INFORMATION ON FUEL GAUGE FLUCTUATION CAUSED BY FUEL SENDER

MODELS: 1997-98 BUICK PARK AVENUE/ULTRA 1997 BUICK RIVIERA

FUEL GAUGE FLUCTUATION DURING ACCELERATION AND DECELERATION WHEN THE FUEL LEVEL IS SOMEWHERE BETWEEN FULL AND EMPTY IS NORMAL. HOWEVER, REPORTS OF THE FUEL LEVEL INDICATOR NEEDLE MOVING FROM COMPLETE FULL TO SOME OTHER LOCATION ON THE GAUGE CAN BE CAUSED BY THE SENSOR IN THE TANK EITHER GOING OPEN OR THE RESISTANCE VALUE EXCEEDING 300 OHMS AT TIMES. THE SENSOR IS A PART OF THE FUEL SENDING UNIT AND IS SERVICEABLE SEPARATELY.

PART NUMBERS: 1997 G BODY AND C BODY 25314201 1998 C BODY 25314241

USING YOUR DVOM, IT MAY BE POSSIBLE TO SEE THE RESISTANCE VALUE MOVE UP AND DOWN IF THE CONDITION IS PRESENT. THE GAUGE IS SENSITIVE TO THIS MOVEMENT IN THE OHM READING AND THEREFORE MOVES ACCORDINGLY. IF THE GAUGE IS STABLE AND YOU ARE NOT ABLE TO SEE MOVEMENT IN THE OHM READING IT MAY BE NECESSARY TO FILL THE TANK AND DRIVE THE CAR WITH THE OHM METER INSTALLED.

PARTS INFORMATION:

PARTS ARE CURRENTLY AVAILABLE THROUGH GMSPO.

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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.