Either the fan itself is burnt out or the temperature control switch that tells it when to turn on is bad.
Drain plug on bottom of radiator.
The 1997 Oldsmobile Cutlass radiator fan switch can be found in the fuse box. The radiator fan switch will be in the third column, second from the bottom.
Bottom of radiator. If it has none then remove the lower radiator hose to drain the radiator.
The 1996 Oldsmobile Cutlass Supreme temperature sending unit can be found on the front of the engine. The temperature sending unit will be a few inches above the thermostat housing.
The drain plug is no the lower left hand side ( driver side ) of the radiator.
Look at the engine end of the upper radiator hose in a removable housing
Located in a removable housing at the engine end of the upper radiator hose
Follow the top radiator hose down to the water outlet on engine. The stat is in there.
Stick the starter in the cutlass supreme.
Oldsmobile Cutlass Supreme was created in 1966.
The driver's side radiator fan is the main one that cools the radiator. The passenger side fan only comes on when the engine is being taxed (for example when towing). If your air conditioning still works try turning it on and I'll bet that the passenger fan will begin operating ( the ambient temperature has to be above 3 degrees Celsius for the AC to operate).
Check on the passenger side firewall may have to remove plastic cover
No water in the radiator
The coolant temperature sensor is located in the intake manifold. Also, the hi pressure switch in the AC line. Also, the relays in the fuse box on the passenger fender.
climate control panel.
If stuck closed car will overheat in a short period of time and cooloant will boil from radiator If stuck open car will not reach normal operating temp. If you suspect it is bad, just replace it.
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