[randywebb]

The click is from the solenoid moving. The whirr means the starter itself is spinning after the solenoid clicks... I almost wrote engages, but it might not be engaging.

Jims idea is that you are not getting enough current due to corrosion. That is certainly the most likely situtation. After that strap start looking at other links in the chain such as the strap in the front corner of thetrunk, the starter switch, the battery condition, etc.