My 2005 Pontiac Sunfire has a noise from the front top side of engine that I was told may be from the bearing in the water pump.Is this a hard enough job that it should only be done by a shop? I am no professional mechanic but have done all my repair work for the last several years but nothing on this car beside regular maintenance.What does it take take to replace the water pump?
Sounds like you and others are unsure of the source of the noise and until you have verification I would not be pulling the water pump off and hoping that is the problem. If it is a bearing noise it could be a pulley bearing elsewhere.
Make sure you have identified the problem before doing any work. Your car won't be the first that has developed the noise so check with a shop that works on this model vehicle and is familiar with their issues.
If it is the water pump that is faulty, clearly your best bet is to purchase a factory workshop manual for the car and use this to guide you through the process. You can then assess after reviewing the manual if this is something you would be comfortable doing yourself.
The water pump gets its power from one of the pulleys on the serpentine belt. 1) remove belt 2) remove pulley from pump 3) remove pump 4) remove and replace old gasket and reverse procedure for installation. Usually, when a bearing goes bad, there is a small water leak from the pump.
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