Originally Posted by
onehundred80
Read the manual, that water pump is actually an air pump. It pumps air into the exhausts at start up to warm up the cats. It only runs for 30 seconds or so. It is a common cause for problems when the relay for it gets its contacts burnt etc.
I believe you are talking about the secondary air injection pump located on the drivers side towards the front of the engine bay. The water pump, is water only.