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Q:

new water pump and car still run hot what is the problem on 2002 Pontiac Bonneville

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
car still runs hot after new waterpump do i neen to check hoeses
(1) Answer
Have you made sure the cooling system has no air pockets in it following your repairs?

I'm not sure what the original cause of replacing the water pump was. There are many reasons that an engine can overheat - from thermostat issues to cooling fan issues. A good diagnosis is in order to find out what the problem is.