1994 All Other Makes All Other Models Repair Question
Topics covered: Exhaust, Catalytic converter, Exhaust manifold.
Mileage: No information provided.
Mileage: No information provided.
Asked on January 28, 2006
1994 Grand Am
I figured out that my grand am is just blowing raw fuel out the exhaust. What would make a car do this? It gets plenty of power, but it just eats the hell out of the gas.
Asked by scarberAnswer
Replied on February 2, 2006
Possible causes are an incorrect fuel mixture, incorrect timing, corroded spark plugs, a faulty oxygen sensor, sticking float, faulty fuel injector or a malfunctioning check valve.
Check the plugs first... If a cylinder isn't firing properly it will allow fuel to enter the exhaust manifold.
Usually raw fuel in the exhaust system will cause the catalytic converter to super-heat.
Are you sure that you have fuel in the exhaust system?