engine light came on, loud bang under hood when turning engine off
engine light came on, when I pulled into driveway, turned off engine. loud sound like a
gunshot when turned off 2007 lx with 3.8 engine. turned back on, heard a fan sound
Gunshot might have been a backfire. Open the hood and see what is causing the fan sound with the engine running and let us know what you find.
A lean condition or timing failure plug firing while valve is open. Does it still start?
A lean condition may be a vacuum leak,broken hose,intake gaskets,injector seals, (sealing) manifold vacuum.low fuel pressure can also create a lean condition. Any commercial parts house scan for free.a diagnostic code will help get a better idea whats direction you should go
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