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Blown fuse, bad thermal relay, bad fan motor, or bad wiring.
Try the fan relay switch if your fuse is not blown.
(second author) Another author hot wired their fan to check if fan(s) was still good.
Sounds like your fans did not move before and after you changed the thermostat (so you should have not written the word "now")? If just later, and because you may have accidentally messed with conductors when you changed the thermostat, then wiggle or clean your connections and possibly do a continuity check.
Depending on the year of the car, possibly near the battery there are a few relays (and maybe one by the fuse box inside the car or by the glove compartment). Lightly tap on them as they may be stuck. Worked for me for a stuck radiator cooling fan, as one was stuck on but that was stuck on not off as in your case so may not work the same.
What else can I help you with?
Why is my engine overheating 2000 cadillac deville?
could be your thermostat or you have no antifreeze coolant or your water pump is going bad
You have replaced cooling system radiatorthermostatwater pumpetc 85 cadillac deville still overheating?
Could be a collapsed lower radiator hose, perhaps a bad thermostat.
How do you change a 98 cadillac deville thermostat?
Vrey carefully
Where is the coolant sensor on the radiator of a 1991 Cadillac deville?
By the thermostat
What are reasons for a 1997 cadillac deville overheating?
Stuck thermostat, scale build up in the radiator and engine block, radiator cap not holding correct pressure. or it could be your headgaskets
How do you replace the thermostat and were is it located on a 96 cadillac sedan deville?
In the motor.
What could be the problem for the 1995 cadillac deville engines overheating?
Dirty or plugged radiator Water pump Defective radiator cap Thermostat Cooling fan not operating hoses collapsing
Why is there a spring in a hose leaving the thermostat in your 1997 Cadillac deville?
to keep the hose from collapsing
Where is the thermostat on a 1990 Cadillac Deville?
Usually at engine end of upper radiator hose in housing
Where is the radiator cooling fan sensor on a 1998 cadillac deville concour?
near the thermostat housing
How do you fix an overheating problem in a 1996 Cadillac Deville?
To fix an overheating problem in a 1996 Cadillac Deville, first check the coolant level and top it off if necessary. Inspect for leaks in the radiator, hoses, and water pump, and replace any damaged components. Additionally, ensure the thermostat is functioning properly and consider flushing the radiator to remove any blockages. Finally, verify that the radiator fan is operational and replace it if it's not working.
Where is the thermostat located on a 1996 Cadillac DeVille?
located n housing at end of upper radiator hose.
