How hard is a water pump to change
It is realy hard, I have a 2008 gran prix. I did once and took me like one day. Good luck!
Not hard. You have to go in through the right (passenger's side) wheel well. Remove the wheel and tire assembly and it's right there. The hardest thing is you have to swing the power steering pump out of the way. One of the water pump bolts is behind the power steering pump. The factory shop manual will tell you to unbolt the power steering pump and move it out of the way. Don't. You can loosen the top bolt and remove the bottom bolt. Then swing the bottom of the power steering pump toward the rear of the car. If you remove the top bolt on the power steering pump it's a bugger to get back in!! Also, loosen the water pump pulley bolts, but don't remove them, before you remove the serpentine belt. Once they're loose, then remove the serpentine belt. Then remove the pulley. HTH. -Jim
On a 2008 with a 3.8, removing the wheel will only gain you access to the bottom bolt of the power steering pump. I had to take power steering pump off to get water pump bolt out, not too bad to get back on with a deep well socket and hold it up with your off hand. The worst part of the job is putting everything back on that had to come off to get to water pump.
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