Your vehicle's fuel system has a faulty fuel pressure regulator that can leak fuel at a higher rate than usual, potentially causing a backfire.
Risk if Unfixed
If the backfire happens, it can rupture the intake manifold, causing a fuel line to break, which can lead to a fuel leak and possibly a fire.
Free Fix
You should take your vehicle to the dealership, where a new fuel pressure regulator with improved parts will be installed free of charge. The recall is being done in phases, starting on June 30, 2004, and September 30, 2004, and you can contact Buick, Oldsmobile, or Pontiac at the numbers listed for more information.
Show original NHTSA language
Original — What Happened
ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 3800 V6 (L36) ENGINES AND CERTAIN DELPHI FUEL PRESSURE REGULATORS, THE REGULATORS HAVE A MUCH HIGHER THAN USUAL RATE OF FUEL LEAKS. A LEAK CAN ALLOW FUEL TO ENTER THE INTAKE MANIFOLD THROUGH A VACUUM LINE. IF THE ENGINE DOES NOT START WHEN CRANKED, THE FUEL FROM THE LEAKING REGULATOR AND A MISTIMED SPARK CAN CAUSE A BACKFIRE.
Original — Risk if Unfixed
THE BACKFIRE CAN RUPTURE THE INTAKE MANIFOLD. THE RUPTURE OF THE INTAKE MANIFOLD CAN DISPLACE A FUEL LINE, PULLING AN INJECTOR OUT OF PLACE, AND CAUSING A FUEL LEAK AND POSSIBLE FIRE.
Original — Remedy
DEALERS WILL INSTALL NEW FUEL PRESSURE REGULATORS WITH IMPROVED DIAPHRAGMS. THE RECALL WILL BE CONDUCTED IN PHASED MAILINGS. PHASE 1 BEGAN ON JUNE 30, 2004, AND PHASE 2 BEGAN ON SEPTEMBER 30, 2004. OWNERS SHOULD CONTACT BUICK AT 1-866-608-8080, OLDSMOBILE AT 1-800-630-6537, OR PONTIAC AT 1-800-620-7668.
Your vehicle's brake system has a potential issue with internal fluid leaks in the brake hydraulic control unit, which could cause problems with your brakes.
Risk if Unfixed
If you're driving and the system tries to help you stop quickly, it might not work as well as it should, which could lead to longer stopping times.
Free Fix
You should schedule a free visit to the dealership, where they'll inspect the ABS hydraulic modulator unit and replace it if needed.
Show original NHTSA language
Original — What Happened
VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME OF THESE VEHICLES HAVE INTERNAL FLUID LEAKS IN THE BRAKE HYDRAULIC CONTROL UNIT.
Original — Risk if Unfixed
WHEN THE REAR BRAKE PROPORTIONING, ANTILOCK BRAKE, TRACTION CONTROL, OR STABILITY CONTROL FEATURE IS ACTIVATED IN SOME DRIVING SITUATIONS, THE FEATURE MAY NOT PERFORM AS DESIGNED.
Original — Remedy
DEALERS WILL INSPECT THE ABS HYDRAULIC MODULATOR UNIT AND IF NECESSARY, REPLACE THE HYDRAULIC MODULATOR.
Your vehicle's windshield wiper system's computer chip may be vulnerable to electrical surges, which could cause it to malfunction.
Risk if Unfixed
If this happens, you might not be able to use your windshield wipers in both slow and fast modes, which could reduce your visibility during rain or snow.
Free Fix
The dealership will replace the chip's housing, which contains the computer chip, free of charge.
Show original NHTSA language
Original — What Happened
VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME OF THESE VEHICLES FAIL TO COMPLY WITH REQUIREMENTS OF FMVSS NO. 104, "WINDSHIELD WIPING AND WASHING SYSTEMS." THESE VEHICLES HAVE A WIPER SYSTEM MICROPROCESSOR THAT IS SUSCEPTIBLE TO VOLTAGE TRANSIENTS, WHICH CAN CAUSE A "LATCH-UP" CONDITION IN THE SYSTEM CONTROLLER.
Original — Risk if Unfixed
IF MICROPROCESSOR "LATCH-UP" OCCURS, THE CUSTOMER WILL NOT BE ABLE TO OPERATE THE SYSTEM IN BOTH THE LOWER AND HIGH-SPEED MODES REQUIRED BY THE STANDARD.
Original — Remedy
DEALERS WILL REPLACE THE WINDSHIELD WIPER MOTOR COVER WHICH CONTAINS THE MICROPROCESSOR.
