Ok heres the deal. My sister has a 2000 coupe and got an engine light so she took it into the dealer and they came back and said that the Thermactor Pump had siezed, along with the check valve and the relay. I know basicaly what the pump is for, im just wondering how easy it is to fix and how expensive to replace. The dealer gave her prices of something like $600-700 to replace those three parts. How much is this going to affect the cars driving and is it necessay to get it replaced as soon as possible?