Date: 24.02.2004
Component: Fuel System, Gasoline > Delivery
Manufacturer: General Motors Corp.
Description:
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.
Consequencs:
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.
Notes:
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.
