06 grand prix leaks water what is it?


Asked by Dec 12, 2013 at 07:23 PM about the 2006 Pontiac Grand Prix Base

Question type: Maintenance & Repair

i have a 06 pontiac grand prix 3800 v6 that leaks coolant from near water pump. i replaced the pump and gasket still leaks but cant tell from where and its not the plastic elbows from heater hoses.

7 Answers

see if you can get your mitts on a coolant system pressure tester...pressurize, then look for where it sprays...I suspect they were not mindful of the seating of the gasket~

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do they rent them at autozone or some where

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I hope that it is NOT water but 50/50 ethylene glycol and water mix...just water=death to the motor, because aluminum heads immediately corrode and react with water (gavonically)~

I'm sure they will, but your local corner mechanic will have one....hey this one's thirty bucks plus ten bucks shipping~ http://www.amazon.com/Mityvac-MV4560-Radiator-Cooling- Pressure/dp/B003V9L05G/ref=sr_1_3?ie=UTF8&qid=1386895280&sr=8- 3&keywords=cooling+system+pressure+tester

perhaps autozone or orally's has them too~


thanks man

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It's probably the lower intake manifold gasket. GMs 3.8 motors are notorious for upper and lower intake gasket failure. HTH. -Jim

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