Quote:
Originally Posted by jb92563
What sort of noises and symptoms indicate the pump failing.
Reason I ask is because I hear a bit of a rattle when idling that I think is new and my guess would be the pump bearings or the timing chains.
It even does it when hot so thats probably less likely the timing chains?
Would I see coolant loss over time if its the pump bearings?
My car has ~65K miles on it and still on the 1st pump I think.
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My original pump started having grinding noise (at ~202,000 miles) and then started to leak a little, leaving a spot on the garage floor, and I replaced it with a LASO. The LASO pump starting to fail (after 40,000 miles) did not leak but is started to make noise that I can best describe as one of those old crank sirens (not as loud) being turned at a slower speed and increasing pitch as the RPMs increased.