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.