Where is the water pump and thermostat on an Oldsmobile Achieva 1996?
Please specify an engine size. If it is a 3.1L v-6 there is a posting already about the t-stat. As for the water pump, it is on the passenger's side and is the forward-most, upper-most pulley driven part. It is a VERY simple replace and is held onto a mounting plate by small bolts. VERY IMPORTANT! Make very sure that you bleed all air from the coolant system after replacing the pump. The air can be released by unscrewing the small top screw on the assy that goes from the coolant bottle to the block. Mark,,,Raleigh, NC Helpful Hint---to loosen the bolts on the pulley, leave the serp belt as is, loosen the pulley mounting bolts, loosen the belt (DO NOT remove completely, remove the pulley, you will see the mounting bolts under the pulley area