1991 Ford Tempo

I have a 1991 Ford Tempo GL 2.3L auto a/c with approx. 60,500 miles. The car was running fine and then it seemed to hesitate a few times en route to my destination. After it sat for a few hours I tried to start the car. It initially turns over for about a second and a half but it was a real rough, shaky start and then would shut off. Tried turning over again and got the same shaky start with a shut off. Plugs, wires, cap, and rotor were replaced about 2 weeks ago and the car was running fine until now. Any ideas? Thanks
November 16, 2007.

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