Water pump .....

[KevinH1990]

I recently changed the water pump in my 2000 base when it started making noise. It had over 80,000 miles on it. Based on my experience, you should have another 30,000 miles of life in your water pump. However, I am aware that others have experienced failures with far fewer miles.

If you were planning a long trip, it might make sense to change it as a precaution.

Here's a post with a variety of opinions and experience: http://986forum.com/forums/general-discussions/49975-water-pump-question.html

[Heiko]

Took my own out at 45,000 miles and 13years - it didn't make noise, didn't leak but I figured since the impeller is plastic I'd rather not have to worry about missing impeller fins floating around in the engine passages possibly stopping cooling and causing other issues. Put it this way if you got 13 years out of that pump it doesn't owe you anything (that's just my opinion)
H