What will cause an engine to flood on a 1990 Geo Tracker?

Answer 1

An engine in a 1990 Geo Tracker can flood due to excessive fuel delivery, often caused by a malfunctioning fuel injector, a stuck fuel pressure regulator, or a faulty carburetor in carbureted models. Additionally, prolonged cranking of the engine without starting can lead to an accumulation of fuel in the combustion chamber. This results in an overly rich air-fuel mixture, making it difficult for the engine to start. To resolve flooding, it may be necessary to allow the engine to sit and clear excess fuel or address the underlying fuel system issues.