miglia-spyder

Does anybody else have a constant whistle that comes from the water pump? From Day 1 my jeep has always had a whistle. I took the belt off once... No more whistle. I have replaced the water pump, Same whistle.

This happens at all rpm ranges, it doesnt change pitch's... And only happens with the belt on.

93XJLI

whistle? like bearing whine? bc i get a vacuum whistle every so often from random crap, but its not the waterpump.

if the pump is making noise it should be replaced bc the bearings are on their way out. and DONT cheap out. i went through 4 cheap reman waterpumps in 2 years. finally put a new bosch in and its way better.

miglia-spyder

Its sounds like a vaccum whistle. But it doesnt happen when the belt is on. When i replaced the WP the sound never changed at all. So i dont think its the water pump bearing. It is possible that i could be another pulley, but it sounds like its coming from the water pump.

It doesnt sound like a squeal though, its like a soft whistle, like a vaccum would make.

93XJLI

take the belt off again and spin each pulley by hand, see if any makes noise. might be the idler pulley.

miglia-spyder

Ok i took the belt off and spun the pulleys. The waterpump is the one that makes the noise! But it made that noise since it was new. And the old one made the same noise. Do you really think the bearings are bad?

93XJLI

is the pump a reman or a new one? ive had remans squeal right out of the box.

miglia-spyder

Its a reman. I checked the bearing for play and there wasnt any. Wouldnt play in the bearing or some kind of metal squealing noise mean and bad bearing?

cl_cherokee

Mine does that same thing.. and I remember my parents 00 doing the same thing right off the lot back then

miglia-spyder

I was told by a friend of mine, that it might just be the way the fuid is run through the pump, or how the turbine spins.