2000 Mustang GT

Mustang5L5 said:

i would suspect either the fuel pump, or the ignition coils but you will need to perform some troubleshooting. For instance, I would get a fuel pressure reading when it's misbehaving and verify that pressure is correct. Are you able to hook up an OBD2 scanner when it's running bad and see if oyu have any pending trouble codes for a misfire, that might identify the cylinder?

ALso, whats the general state of the car? how many miles and when was the last time the fuel filter was changes, or are oyu over the recommended interval for changing the spark plugs?

Click to expand...

Mustang5L5 said:

i would suspect either the fuel pump, or the ignition coils but you will need to perform some troubleshooting. For instance, I would get a fuel pressure reading when it's misbehaving and verify that pressure is correct. Are you able to hook up an OBD2 scanner when it's running bad and see if oyu have any pending trouble codes for a misfire, that might identify the cylinder?

ALso, whats the general state of the car? how many miles and when was the last time the fuel filter was changes, or are oyu over the recommended interval for changing the spark plugs?

Click to expand...