1993 Oldsmobile Cutless won't start

Weak battery and or bad connection somewhere . Have removed, cleaned and tightened the battery cables ?

how does it act before shutting down? rough running low power, what..repost

try fuel injecter cleaner

if starts with spray will need to check relay -in fuse panel --and fuel pump--10,000 doesnt mean it cant fail or connection problem -and fuel filter can be partially plugged or fully pluged

Does it crank?If you shut it off and you restart after a few minutes and it cranks but won't start or starts and runs rough the injectors are leaking and flooding the engine. Need better description

oil pump water pump thermosta, blown head gasket ,leak in hoses

Is the Service Engine Soon (or Check Engine) light illuminated on the instrument panel? If so, then have someone pull the codes and post them back here. Autozone will do this for you at no cost.Caution: don't purchase any parts after reading the codes on their recommendation! If no codes, then suspect either a bad crankshaft sensor or camshaft sensor. There are other possibilities too, but these are primary. I have seen MANY bad crank sensors do exactly what your describe without setting a code.

You most likely have a bad fuel pump. Very common symptoms your describing, If your handy try squirting some brake cleaner into the throttle body when this happens. If it starts you now know what to do. Also be sure the battery terminals are clean. Voltage drops can cause a fuel pump not to run or run ineffeciently.

Ignition module is the likeliest place to look.

I had the same problem with a 97 sc2. The fix for my car was the temp sensor that controls the extra fuel when engine is cold it didn't sense that the engine was warmed up and added extra fuel flooding the engine.