[~jeff]

Originally Posted by 78F350

...and to the OP, +1 to the comments posted about the radiator fans. I had only one fan working for quite a while I suspect, but didn't realize it until the other one failed too. The fans were actually good, but the resistors went bad. Here's the inexpensive fix: http://986forum.com/forums/diy-project-guides/70000-low-speed-fan-resistor-alternative.html#post602774
Here's one of many old threads about the problem: http://986forum.com/forums/boxster-general-discussions/3175-radiator-fan-overheating.html

Thanks for the tip!