What is your question?
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What is your question?
how can you tell if the water pump is bad?

1 Reply
Usually it will leak or have play in the pulley. However impeller problems are not a thing that doesn't happen. Pressure test, coolant ok, clean and full, no cloggged hoses, thermostat ok? AS you can see that system has a lot. Now if it's leaking, replacement would be needed