Where is the thermostat located on a 1994 Oldsmobile Achieva?
follow the top hose off the raddiator back to the engine block there shoukd be a houseing with two or three screws it is under here The thermostat on the 1994 and later 2.3L and 2.4L (Quad 4)engines is located above the radiator outlet pipe in the water pump cover which can be reached from under the vehicle on the passenger side. Note: The bolts are accessible from the top of the engine between the no. 2 and 3 exhaust manifold runners. It may be necessary to remove the engine to transaxle support brace to facilitate removal of the radiator outlet pipe. On all other engines the thermostat is located in the coolant outlet housing on the cylinder head. Some 2.0L OHC and 2.5L OHV 4cylinder engines are equipped with a drop-in style thermostat located in a stamped steel housing mounted on the cylinder head. These models can be identified by a large cap that seals the thermostat housing.