2004 Buick Rendezvous fuel system problems

Defect

ON CERTAIN VEHICLES, VARIATIONS IN THE MANUFACTURING PROCESS OR EXPOSURE TO HIGH AMBIENT TEMPERATURES MAY LEAD TO FRACTURE OF THE FUEL TANK INLET CHECK VALVE (ICV).

Consequence

A FRACTURE MAY ALLOW FUEL VAPORS TO PASS THROUGH AND ALLOW DROPLETS OF FUEL TO ACCUMULATE ON THE SIDE OF THE FUEL TANK. FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, COULD RESULT IN A FIRE.

Remedy

DEALERS WILL REPLACE THE FUEL TANK. THE RECALL WILL BE MAILED IN TWO PHASES WITH THE FIRST PHASE BEGINNING ON DECEMBER 4, 2007. THE SECOND PHASE WILL BE MAILED ON DECEMBER 13, 2007. OWNERS MAY CONTACT BUICK AT 1-866-608-8080; CHEVROLET AT 1-800-630-2438; OR PONTIAC AT 1-800-620-7668. THE VEHICLE POPULATION INCLUDES BUICK RENDEZVOUS AND PONTIAC AZTEK VEHICLE BUILT IN MAY 2003; CHEVROLET VENTURE AND PONTIAC MONTANA VEHICLES BUILT FROM JUNE THROUGH AUGUST 2002; AND ALL VEHICLES REGISTERED IN NEVADA, ARIZONA, VIRGIN ISLANDS, PUERTO RICO, AND HAWAII.

Defect

CERTAIN DELPHI FUEL PRESSURE REGULATORS, P/NOS. FP10020-11B1, FP10026-11B1, AND FP10027-11B1, SOLD AFTER JANUARY 9, 2007, AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES LISTED ABOVE. THE UNIVERSAL PRESSURE REGULATORS (UPR) WERE PRODUCED WITHOUT AN O'RING AND RETAINER.

Consequence

FUEL MAY LEAK, POSSIBLY RESULTING IN A FIRE.

Remedy

DELPHI WILL NOTIFY OWNERS AND REPLACE THE UPR FREE OF CHARGE. THE RECALL BEGAN ON APRIL 23, 2007. OWNERS CAN CONTACT DELPHI AT 877-411-8770.

Defect

ON CERTAIN PASSENGER VEHICLES, A WELD BETWEEN THE FUEL TANK INLET CHECK VALVE AND THE FUEL TANK CAN FAIL.

Consequence

IF THESE PARTS SEPARATE, THE DRIVER MAY NOTICE AN ODOR OF FUEL, THE SERVICE ENGINE SOON OR CHECK ENGINE LIGHT MAY ILLUMINATE, AND/OR FUEL MAY LEAK ONTO THE GROUND. FUEL LEAKAGE IN THE PRESENCE OF AN IGNITION SOURCE COULD RESULT IN A FIRE.

Remedy

DEALERS WILL INSPECT THE SERIAL NUMBER OF THE FUEL TANK TO SEE IF IT IS ON THE LIST OF AFFECTED TANKS. IF THE SERIAL NUMBER MATCHES, THE FUEL TANK WILL BE REPLACED. OWNER NOTIFICATION BEGAN NOVEMBER 4, 2003. OWNERS SHOULD CONTACT BUICK AT 1-866-608-8080 OR PONTIAC AT 1-800-620-7668.