Rattle on Startup

[jpc763]

Originally Posted by Pdwight

I have a water pump job on the books now for the fall....just hit 70K and I would rather catch it before it dies....low temp Tstat at the same time.



Question , how does the underdrive pulley generate more horsepower ?



Is it just greater mechanical advantage or what ??

My 2001 S is in the shop for (I fear) is a water pump. What is this "low temp thermostat you refer to?

Thanks, John

[Coaster]

Originally Posted by jpc763

My 2001 S is in the shop for (I fear) is a water pump. What is this "low temp thermostat you refer to?

Thanks, John

Lot's of threads talking about them if you do a quick search. Here is a link to get you started.

Pelican Technical Article: Boxster Water Pump & Boxster Thermostat Replacement - 986 / 987