Check coolant level Perhaps thermostat is not opening to allow coolant to flow
make sure you check all fuses and if they are good you may need to change your thermostat.
There was no rwd Cadillac Fleetwood in '98
In the coolant resivoir.
Coolant for the 98 Deville is added into the coolant overflow bottle. The side of the bottle should have low and high coolant markings.
How do I replace the heater core in my 98 cadillac deville
location of 2003 cadillac coolant temperature sensor
Just bought my 98 Cadillac deville and has the luck on
where is the coolant temperature sensor located in a 1999 cadillac seville sls?
Dex cool coolant.
yes
how to locate engine coolant temperature sensor on a 1999 Cadillac De Ville Concurs