On 3.1L or 3.8L it is lower front of engine radiator side between engine and transmission. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online
RepairPal Certified shops can diagnose and repair your 1997 Buick Regal. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
thank you.we were trying to find it at three in the morning,in the dark.