coolant tank. :(

[Meir]

Dear Tony.
We all feel your pain.
Every one of us went thru the same frustrating moments at this point or another.
I would like to give you couple of advices before you give up.( And believe me, I was on the way to the store to get a case of dynamite more than once).
1. If it doesn’t work for you, walk away. Start over fresh tomorrow, I promise things will look different.
2. Take bmx672 advice, and replace the hoses as well.
3. Get that tool : Amazon.com: Astro Pneumatic 9409A Hose Clamp Pliers: Home Improvement
No clamp is slipping any ware with that.
Good luck bro. just think of the satisfaction you’ll feel once you will complete the job

[nieuwhzn]

"3. Get that tool : Amazon.com: Astro Pneumatic 9409A Hose Clamp Pliers: Home Improvement"

Sears has them too. And I agree, don't try to open the clamps without a cable operated tool. The whole Boxster is inundated with these hose clamps, the tool will pay itself back in no time. I wouldn't have been able to replace the AOS without it.