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Re: Intermittent misfire
Although this is an old thread, I wanted to provide a final update, because the gurggling sound has now been completely eliminated. I can't definitely prove it, but believe there was an issue with either the fuel line connections to the fuel rail, or the connections to one of the fuel injectors.
This spring I was forced to replace in lower intake manifold gasket due to a coolant leak. Since this work requires removing the entire intake manifold, the fuel lines needed to be disconnected. In the course of this I also decided to remove each fuel injector for reasons that I now don't remember. There has not been any reoccurance of the gurggling or the misfiring associated with it since this repair was completed. I don't believe the intake gasket was involved in the gurggling, since it is not part of the fuel delievery system. My best guess is that the o-ring seal between the fuel line and the fuel rail was somehow causing this.
The gasket leak was in the area of cyl 4, so the misfire on that cyl may have been related, at least in part.
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09-20-2011, 12:16 PM
