My car is having problems, sometimes it won't crank. We know it is probably the fuel pump or the main relay, can someone help me and direct me the right way! Thank you

 

possibly ignition switch or main relay

 

Is the engine turning over with the starter and just not starting or is it turning over slowly or just clicking.

If its turning slow or not at all then its going to be a starter, battery, charging or control circuit issue.

Please clarify.

 

It will still crank if the main relay or fuel pump is bad.

 

^^ +1 like stated above, must be the starting system to include starter, possible clutch switch, ignition switch, starter solenoid if not cranking. If cranking and not starting, thats a whole other list.