Recall 03V473000: Fuel Pressure Regulator Replacement

DEFECT: Certain passenger vehicles equipped with 3800 V6 (L36) engines and certain Delphi fuel pressure regulators have a much higher than usual rate of fuel pressure regulator diaphragm 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. 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.


REMEDY: Dealers will install new fuel pressure regulators with improved diaphragms. The manufacturer has reported that owner notification is expected to begin during January 2004. Owners may contact Buick at 1-866-608-8080.