On a 4.9L follow the upper radiator back to the engine. This should be the thermostat housing. The thermostat should be inside. On a 4.6L the thermostate is in the housing which is near the water pump drivebelts "on the coolant crossover housing". If this is not clean I recommend you buy the Haynes for your DeVille. See page 3-4, illustration 3.14.
in the tank
Type your answer here... where in height sensor location on 1999 cad deville
in the gas tank
Under. Hood
its located under the engine cover in between the heads
Where is the oil dran plug on cadillac deville, 1999
start with checking thermostat
Will a 99 Cadillac deville radiator work in a 2000 Seville
To replace the air ride compressor on a 1999 Cadillac DeVille Concours remove the air shocks located under each wheel and replace it.
The windshield wiper relay switch, on your 1999 Cadillac Deville, are located mounted to the firewall in the engine compartment. The relay switch will be next to the windshield wiper motor.
It has a 195 degree Fahrenheit thermostat so runs around 195 to 215.
where is the outside temp. sensor located on a 1997 cad.deville