Would a fuel pump cause my 1991 Chevy corsica not to start and then when it does start it runs for a minute then stalls and dies and will not restart - where is the pump how do you change it?

Answer 1

Possibly, but first you need to get more information. This might sound dumb, but make sure the tank has fuel and/or the guage is correct. Assuming you have the 3.1L V6, this engine is very easy to troubleshoot. Remember to use extreme caution when working with moving parts and gasoline! To rule out the fuel system, start with getting the fuel pressure by connecting a guage to the test port on top of the engine. Turn the key on without the starter. It should read somewhere in the neighborhood of 40-50 PSI. Also take a fuel sample & check for water or other contaminants. It will probably be ok. More than likely it's an ignition problem. These are well known to have one or more of the three coils go bad creating an over-rich exhaust. The ECM then tries to lean the fuel which in turn starves the cylinders that are correctly firing. Symptoms will also include surging, high idle upon startup, or unable to start warm. Begin by making sure the spark plugs and plug wires are good. A simple way to check the coil outputs is to use an inductive timing light. Place it on each plug wire, an erratic flash will will tell you which one it is. Good Luck!