My car locks stopped working. I took it to the dealer and they told me I needed a new pse pump. The cost of a pse pump $832.00 plus a couple of hours of labor!!. Thanks to Brett from v12uberalles.com, I have done the following: removed fuses # 9..(did not work) located pump and removed plug and airlines to reset.(did not work) removed the pse pump and opened it ,adjusted the preassure switch and still did not work! Anything left to do?? I'm confused on something....my locks do not work, but my doors are working fine, when I close them the suction pulls them closed. I thought that was a function of the pse pump. Any help will be appreciated.

P.S Where can I buy a pse pump at a reasonable price??