Pontiac Bonneville Problem Report

Pontiac Bonneville Engine Overheating Due to Water Pump Leak

(30 reports)

The water pump may develop a coolant leak resulting in an engine overheating condition.

 

over heating waterpump leaking -
Failing water pump caused an antifreeze leak as well as overheating. It also caused the heater to stop working as well when coolant would get low. -
Water pump is literally spraying water everywhere. I have never in my life seen a water pump fail like this. -
I haven't got the problem fixed yet. I will have to take it to the shop because I am not car SAVVY. I noticed my cars temperature needle rising alot so I would add coolant. Over time I seemed to be having to add a half a gallon to a gallon every two to three days. Today I decided to add water to the radiator and to the reservoir but I left the top off of the radiator when I started the car. The coolant flowed smoothly from the reservoir to the radiator. It started to leak around the hose in between the alternator and the belt on the supercharger. I have researched online figured out that I may possibly need to replace my water pump -
I was sitting in front of a convenience store with my car running and my car began to smoke. I got out popped the hood of the car to see all my coolant leaking from my car. -
Coolant leaking, Car overheating. Took it in and water pump went out. approx. $400 to fix. -
water pump was leaky....replaced and it was okay -
leaking coolant around water pump. Last GM vehicle I'll ever buy. -
engine overheating and serpentine belt broke because of water pump failure. 140,000 miles -
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