Cadillac Repair: 93 CADILAC, fuel pump, cranks

Question
I have a 93 caddy sedan deville. It is hard to crank.  When it finally cranks and you are going down the road it will just cut off on you.  I have changed the fuel pump.  What could this be?

Answer
IS or HAS the CHECK ENGINE light ever illuminated while driving the vehicle ?.

What work or diagnostics of ANYKIND WHAT-SO-EVER have been performed on the vehicle trying to fix this problem ?.


Are you getting sufficient spark to the spark plugs while cranking the engine when it is hard to start ?.