if it's heatsoak at the starter solenoid= new starter is needed
either that or new wires to battery/cable connections as well...
EDIT:
waitamin... your ? was answered in your other thread I scrolled down to already!
zerothread/190701
autozone does it for free!
i don't think u have advance auto parts store in your area, but mebbe a similar store from
http://www.partsamerica.com like oreiley's or other has a similar free test-in-da-parking-lot kinda deal...