I have a coolant leak behind crank pulley area?

1993 BUICK PARK AVENUE
231,000 MILES • 3.8L • 6 CYL • FWD • AUTOMATIC
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KILO36
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I have a coolant leak behind crank pulley area that only leaks when there is coolant in reservoir. The radiator stays full and the leak stops when the reservoir empties. Car has been parked for 3 days leak was constant until reservoir was empty and started when I put water in reservoir. Could this be water pump
Jan 30, 2015 at 1:02 AM
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HMAC300
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I would pressure check system here is a guide to help you

https://www.2carpros.com/articles/radiator-pressure-test

Let us know what you find.
Jan 30, 2015 at 6:31 AM
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STRAILER
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If it only leaks when the coolant reservoir has coolant in it I would check the hose between the coolant reservoir and radiator or it could be the reservoir itself, here is how to change it out if you find the reservoir leaking.

https://www.2carpros.com/articles/coolant-reservoir-replacement

Let us know what you find.
Aug 13, 2024 at 2:02 PM
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