can anyone tell me where my freez plugs or plug is located on a 2006 Pontiac grandprix gt ,supercharge 3.8, and can I change them my self or what ?? please help

Asked by Nov 09, 2013 at 06:42 PM about the 2006 Pontiac Grand Prix GT

Question type: Maintenance & Repair

car is leaking coolent looks like from water pump , but not sure..

2 Answers


You can get to most of them with a fair amount of work but the ones in the back of the block will require that you either remove the engine or trans to get to them, 2006 unless it has been poorly maintained should not have any freeze plug issues yet, but a water pump is more likely.

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There is a black plastic elbow shaped heater connection under the mount for the alternator you might want to check. I just did mine and at first I thought it was the water pump too. Mechanic tells me these go out on the 3.8. There is one right below the tensioner that looks the same and its easier to see.. ...I cant believe they used 90 degree plastic!

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