20 Most Recent 2000 Cadillac DeVille - Page 4 Questions & Answers

How hot does it get in degrees F? Have you ever changed the thermostat? Can you checK coolant flow through the radiator? Check for combustion gases in the coolant? Does it overheat going down the highway or at idle?

Sounds like a faulty circuit board on the wiper motor.

Is it a new key or a new anything?

If there are no external brake fluid leaks, continued application of pressure on the brake pedal will see the pedal sink to the floor if the MC is faulty and needs to be replaced. This will be due to significant wear inside the MC in the bore and on the pistons.

It probably is the wiper motor gone bad, but in the interim, go under the hood and unplug circuit to wipers to shut them off. When it rains, youll have to plug it back in....until replacement

in the under hood relay box.

Is it clear water or colored ? (green or red )

it is the timing on your engine and the water pump,as soon as the motor gets too hot,the head gasket will blow,then you will need to tear the motor apart then you will have to buy a water pump,head gasket fix bent valves.replace the head,,,,,,,,,,,,,,,,,,,,,,stop trying to drive it till you get it fixed

your serpentine belt needs to be replaced

If it's just one door, check the door switch. If the lights do not work regardless of which door is opened, check the "INT LP" relay in the rear fuse block (under rear seat). Unfortunately, this relay is controlled by the Rear Integration Module (RIM) based on input signals from the doors etc. If the relay fuse and relay are ok, then you may have to replace the RIM - check the car error codes (DTCs) first to make sure.

If the transmission is working properly, the issue is probably the shift cable, probably faulty or not moving correctly.

THE VSS IS LOCATED ON THE TRANSMISSION,

Sounds like your linkage has separated.... but, first check the transition fluid make sure it is full and use the correct type for your brand of car.... the linkage goes from the bottom of your shifter and hooks to the transmission...as you move the shifter in the car it selects a gear on the tyranny by physically moving a leaver... a lot of times they are cable or leavers but some are electric..

An ohm meter may help or hold the broken pieces together, exactly as it broke, the two pieces should line up to original position and give you an idea.
Hope either helps!

The powertrain control module (PCM) fuse is a 10a one in the underhood fuse block.

you can reset the system by turning key to on position for 5-10 mins and then try starting it but its probably a short or grounding prob try the engine to chassis ground

Both the start circuit breaker (30A) and Start 1 relay are located in the underhood fuse block.

There is no way to reset the light , you probably need a new coolant level sensor ! Coolant Level Sensor Description The coolant level sensor monitors the coolant level in the cooling system and indicates if the coolant is low. This sensor is located at the base of the radiator surge tank and is not serviceable. CHECK COOLANT LEVEL (2) The IPC receives a discrete input from the engine coolant level switch. The engine coolant level switch is normally closed. When the engine coolant is low, the engine coolant level switch opens. When the IPC receives an open signal from the engine coolant level switch, the IPC displays the message on the DIC. you have to replace this ,Radiator Surge Tank !

most likely a bad fan motor or an open circuit.