I should have noted the engine was surging around 1500-2000 rpm just to keep it running.
Some other info:
-it wasn't doing this clacking before it died in New Jersey
-I never heard the clacking when attempting to start it many times in the parking lot
-when attempting to start after replacing the fuel filter, the starter wasn't cranking but was making a repeating clicking, like the solenoid was firing, until I cleaned off the ground strap and body connection under the battery tray and then the car started while making the clacking it does not
-I can't isolate the noise with a mechanics stethoscope






