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Common Problems, Issues, Recalls, and Reliability

  • Power Window Regulators may Fail

    One or more of the power window regulators (one in each door) may fail causing the window to fall into the door and not roll up .

  • Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail

    One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.

  • Oil Leaks From Lower Engine Area

    The engine may develop oil leaks from the lower crankcase portion of the engine block. Our technicians tell us that the engine must be removed from the vehicle to properly repair this oil leak.

  • Car Won't Start Because of Anti-Theft System That Uses Raised-Chip Key

    Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition.

  • TCC Inop Due to Internal Transmission Fault

    The torque converter clutch (TTC) may stop working due to an internal transmission failure. The Check Engine Light will illuminate if this occurs. Our technicians tell us the transmission will require dis-assembly to correct this concern.

  • Fuel Level Sensor Failure

    It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.

  • Engine Performance Problems Due to Crankshaft Position Sensor Failure

    The crankshaft position sensor may fail causing the engine to stall intermittently, the Check Engine Light may or may not illuminate.

  • ABS Light Due to ABS Control Module Failure

    The anti-lock brake system (ABS) control module may fail causing the ABS light to illuminate. Failed modules should be replaced to restore ABS operation.

  • Electrical Level Ride System May Fail

    The electronic level ride system may not work properly; this may result in the rear of the vehicle riding too high or too low. Our technicians tell us that a height sensor or exhaust valve failure are common issues with this system. Proper diagnoses will be necessary to confirm the exact fault.

  • Engine Overheating May Cause Cylinder Head to Expand

    Overheating of the engine may cause the cylinder head to expand, severely straining the head bolts and damaging the threads in the engine block. This commonly results in a blown head gasket . Our technicians tell us the engine block threads must be repaired before the cylinder head is reinstalled.

  • The Trunk Lid Won't Close Due to Trunk Pull Down Switch Failure

    The trunk pull down switch may fail causing the trunk lid not to close completely. Our technicians tell us that the failed switch can be replaced without changing the complete pull down motor assembly.

  • Power Window Regulators May Fail and Cause the Window to Fall Into Door

    One or more of the power window regulators (one in each door) may fail causing the window to fall into the door and not roll up .

  • Misfire Due to Failed Ignition Coil

    An ignition coil may fail causing one of the cylinders to misfire . Each of the two banks of cylinders has its own coil assembly. If one ignition coil fails the coil assembly for the corresponding cylinder bank must be replaced.

  • Rough Idle Due to EGR Valve Sticking Open

    The EGR valve may stick open, causing a rough idle and/or the check engine light to illuminate.

  • Coolant Leaks From Water Pump and Radiator

    The water pump and/or the plastic side tanks on the radiator may leak causing a loss of coolant . The engine may overheat due to coolant loss. Continued coolant loss after external leaks have been repaired could indicate a blown head gasket .

  • Rubber Transmission Cooler Lines Can Leak Fluid

    The rubber section of an automatic transmission cooler line may develop a fluid leak . In some cases the leaking section of hose can be replaced. In others, the complete cooler line must be replaced to correct this concern.

  • Check Engine Light on Due to Faulty Catalytic Conveter

    Failure of the catalytic converter can result in illumination of the Check Engine Light .

  • Replace Fuel Filter Every 30,000 to Prevent Fuel Pump Failure

    The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

  • Vacuum Brake Release Switch Can Fail

    The parking brake may not release automatically due to a failed vacuum switch or actuator. Our technicians tell us that if vacuum is supplied to the actuator when the transmission is in gear, the vacuum switch is functioning and replacing the actuator should correct this concern.

  • Check Engine Light Due to Gas Cap Issue

    Illumination of the check engine light may be the result of a loose or worn gas cap .

2004 Questions and Answers

Related Questions

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    related to suspension, shock, replace-remove

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    related to tires

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    related to suspension, auto-ride, replace-remove

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    related to security, disarm

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    related to tires, symptoms, vibration

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    2004 CADILLAC DEVILLE, V8, 4WD, AUTOMATIC, 40, 000 MILES

    related to warning-lights, brake-warning-light

    The check brake fluid light comes on and the brake fluid is full. I have been told it is possible the sensor. How is this replaced? @media(max-width: 960px) { .adt { display: none;padding:0; ..

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    related to suspension, symptoms, shake

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    related to general, warranty

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    related to body, door, panel

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  • Cadillac Deville 2004 Cadillac Deville Fuel Gauge Reading Incorrectly...

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    related to interior, instrument-cluster, gauges, fuel-level

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    related to body, windshield, washer

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  • Cadillac Deville 2004 Cadillac Deville LICENSE PLATE LAMP LENS

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    related to body, license-plate, light

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    related to steering, box

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    related to body, window, not-working

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    2004 CADILLAC DEVILLE

    related to warning-lights, check-engine-light

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    related to exterior-light, running-light

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    related to general, towing

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    related to body, trunk, latch

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  • Cadillac Deville Coolant System

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    related to engine-cooling, leak

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    related to body, door, wiring

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    related to interior, seat, fuse

    Please forgive me if this is a repeat question; I was looking for a certain fuse under the back seat fuse box when the seat fell over and hit a relay and knocked it out and bent the pins. I replace..

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    related to body, window, not-working

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    related to general, noises, whine

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    related to exhaust, white-smoke-

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2004 Maintenance and Repair