We began having problems with surges & hesitations shortly after filling our tank at the local station. We called the station and the owner tested the station tank. Nothing showed up. The next day the problem with our car continued and the check engine light came on. We took the car into the dealership and their testing said we needed to replace the fuel pump. We later found out that there was water in the station tank and thus in our car tank. My question is: can water in the fuel tank ruin a fuel pump?