Originally Posted by mmason3838
I have the same problem currently with my water pump, the clacking is definetly coming from the pump
Replaced the water pump at 70,000 miles on my 2005 3.7L WK. It had a diesil like sound at idle, it was the bearings failing on the pump. I could shake the pulley easily with my hands. The job is very easy, only took 1.5 hours. Be sure to remove the vent plug where the upper radiator hose goes into the front engine cover and fill the block through the upper hose until you get fluid out of the plug hole. If you don't do this, you will overheat due to no water in the block. Not a good thing!