Almost the same as any other car, find the upper radiator hose, it is a larger supple rubber hose that connects the top of the radiator to the engine block. Remove it from the engine block, there is most likely a bracket which would house the thermostat, simply remove this housing, scrape the old gasket material away, replace the thermostat and install a new gasket. Also, you don't need to crank down on these bolts like your life depends on it, just snug them well. Reattach the radiator hose and top of your coolant if you lost any.
The 1993 Oldsmobile Cutlass Sierra thermostat is located on the front of the engine. You can follow the water supply line from the radiator to the thermostat housing.
On the 3.3L V6 it is under the radiator cap.
Yes, you do.
Where is the signal flasher located on a 1987 Oldsmobile Cutlass Ciera?
follow the top radiator hose where it goes back to the egine
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It is quite easy to change the thermostat in your 1990 Cutlass. Remove the thermostat housing retaining bolts. Remove the thermostat from the housing. Reverse the process to install the new thermostat.
no it has dic brakes