I just replaced the intake manifold gaskets because of a coolant leak, which required disconnecting the supply and return fuel fittings at the rail. I have verified spark and initial timing. I also verified fuel in the rail, but it still won't fire. If I hold the pedal to the floor it will backfire out the intake. I suspect an air lock in the fuel rail but don't know how to correct this. It is also quite possible that it is something else. Computer codes did not indicate anything wrong. Any suggestions would be greatly appreciated!
Thanks,
Rick
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Sunday, May 6th, 2007 AT 7:05 PM