fatboyq

iTrader: (2)

Mine is starting to chirp at 81k
is this about when they go out?
I don't want it to fail on me on the highway, just wondering if I should change it now to be safe. Doesn't really leak anywhere I can see.

pSSycotic

iTrader: (7)

I got lucky when mine was goin out. I had it up on a lift putting a tranny cooler on and realized it was leaking. At the time I had @65k on the car.

NviouSS

iTrader: (8)

i thought mine was going out at 44k miles. turns out the gaskets were really bad. no problems since the new gaskets went in.

The Professor

iTrader: (3)

mine crapped out under warrenty about 30k

98redM6

iTrader: (39)

Mine went out a couple of months ago at just over 100k.

Luna

iTrader: (6)

I'm at 95k at still on the stock water pump, the chirping is most likely something else, my bet is idler pulley.

99blancoSS

iTrader: (115)

mine is at 83k miles and fine, I have some noise as well but think its the idler. Waiting for Katech's silver one to come out

02 BLK WS6

iTrader: (11)

Idler pulley, +1 on the chirp

blkbird

iTrader: (28)

I replaced mine at 101k. I noticed it was bad when I had it off during my head install. I would turn it by hand and was rough and squeaked a little. So, might as well, and replaced it. Wasnt leaking or but was starting to squeal a little.

RUDE SS

iTrader: (4)

Mine lasted for like 90k but i knew it went out because it was puking coolant everywhere

Ferocity02

iTrader: (60)

59k and still going. Had to replace the gaskets once though.

lt1formula2000

iTrader: (10)

mine lasted 101K never noticed any problems then it started leaking pretty bad at 50-100 miles after the cam swap. Guess it didn't like the extra RPM.

lt1formula2000

iTrader: (10)

Oh yah me to on the idler pulley chirp. and the idler and tensioner on the AC belt.

Blacker

iTrader: (3)

104K miles and still going.

dailydriver

My stock original water pump locked up at ~80K miles. The only real problem I've had with the car so far (95K/7 years). But it IS a wear and tear item, so I don't even consider it a "problem".

bad6as

iTrader: (17)

did they come out with a better flowing pump?

ls1_doc

iTrader: (6)

Yeah i was replacing my alternator and saw it was leaking. That was at 90000.

_JB_

iTrader: (33)

I saw orange water coming from the weephole one day messing around with my car. Changed it at 56K miles.

RUDE SS

iTrader: (4)

Im not shure but when I replaced the one on my '99 I had to get a new thermostat because the one from my old one did'nt fit. A revised design I was told but as far as flow #s?

dailydriver

AFAIK, the only non electric, not stock LS1 pumps available are the LS2 (not sure if it is higher flowing) and the Evans which is higher flowing (or at least claims to be), and uses better bearings/pulley.