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2002 Pontiac Bonneville SE 4dr Sedan

2002 Pontiac Bonneville
Trim Info:
Front Wheel Drive, 4 Door Sedan, Large
20 mpg city / 29 mpg hwy
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August 7, 2012, 4:24 pm

Robyn R

Question: What could be wrong with my car?

Started off overheating. I did run it after adding water daily to it. Then the engine started to stall going up hills. We patched a leak in the radiator and gave it an oil change and then it drastically got worse. It still would overheat and eventually die during driving. It shakes while driving and has no power. I'm not sure if this is now a problem with the head or what. Any suggestions where to look further?

August 13, 2012, 11:14 am

Elizabeth K

Do you ever have a problem with loss of power when it's not overheating? The priority is to find out why it's overheating--if there's no leak then that is a strong indication that either the head gasket is blown or the water pump has failed. Here's a good article on how to troubleshoot an overheating problem:

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