car wont start??

[drhodes123]

my 1987 grand national cranks hard but wont start batery is fuly charged seemed to run fine other than it used to ittle high at times . but car sat for 3 days and i went to start it and it wouldnt start just keeped cranking can some body please please help me??

 

[norbs]

1st thing, when you turn the ignition on, do you hear the fuel pump running for 3-4 seconds?

Does the service engine soon light come on when you turn the key on?

If not the computer has lost power from the orange wire at the battery somehow.

Check all the fuses at the fuse box.