GMC Repair: 95 buick wont start, gasket material, fuel line

Question
I had a leak at the lower intake seal, replace them and gaskets and gaskets on upper plenum. We put everything back together and it wouldn't start. We then noticed a drip coming out of the fuel line where it attaches to the rail and replaced the o-ring and it stopped leaking. still won't start. When it finally started it sounded like a diesel for a few seconds and died. What could it be?

Answer
did you make sure not to get any excess coolant into the engine when you removed the lower intake?  also if you got any debris in there, ie; old gasket material or gasket debris.  If you did you may have damaged the engine, especially if you got a lot of coolant down in there.