Question about 1998 Buick LeSabre

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If i find metal shavings around the pully do i need to replace the water pump?

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  • Anonymous Mar 15, 2014

    spindle to water pump fell off need to replace to put belt back on

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Sometimes a water pump will fail internally due to severe corrosion wearing away the impeller blades, or the impeller comes loose on the shaft, or the shaft itself may break from metal fatigue (caused by flexing due to an out-of-balance fan).

Many late model vehicles (Chrysler in particular) have plastic impellers to improve cooling efficiency and to reduce cavitation (drag). But the plastic can wear down quickly if the coolant is dirty and contains abrasives. The pump may not leak, but it may not circulate enough coolant through the engine to keep the engine at normal operating temperature.


One way to test for a bad water pump is to squeeze the upper radiator hose when the engine is hot and idling. Careful, because teh hose willb e HOT! If you do not feel much coolant circulating through the hose when you rev the engine, the pump may be bad. The other cause might be a bad thermostat that is not opening properly (remove and inspect the thermostat), or a clogged radiator.

Test it and tell us news (remember rated this).

Posted on Jul 07, 2010

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The question from ZJ Limited was not really answered. Yes, a failing water pump can throw metal shavings. This will occur as the bearing is failing. Upon removing tension from the serpentine belt you will find the water pump shaft is wobbly.

Posted on May 06, 2013

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