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My power belt broke on my car. I took it to a mechanic called pepboys and they replaced the belt. My car broke down that same day. My car was overheating and the heat level was going on up after I put coolant in my car. I never had problems with my car overheating before. I was wondering could they have down something when replacing my car.
What caused the belt to break in the first place . Serpentine belt dont tend to break without help. You mentioned adding coolant , was the car heating up before the belt broke or not until after . Check the water pump pulley also check the idlers to make sure there’s no bad bearings . The mechanic didn’t likely cause the problem but he didn’t see the one that was staring him in the face. Hope this helps
Sounds like your water pump is failing or seized. A competent mechanic should have been able to diagnose this situation when replacing the serpentine belt.