Quote:
Originally Posted by Astroman
I wanted to update that now my Yaris has a cracked NST water pump! I put mine on more than 90k miles ago and my car has been unused for the past 9 months. After a rough start and replacing a dead battery and what I thought was a bad thermostat I noticed that after a few hundred feet my water temps were so high I threw a CEL and my hot light came on. After hearing clacking I looked thinking of this thread and sure enough in one spot it's cracked! Not happy with NST and I KNOW FOR A FACT MINE WASN'T OVER-TORQUED because I've had it problem free for 90k miles!
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Are you running the stock crank pulley?