Many modern GM made vehicles have a battery saver feature, this includes the Cadillac DeVille. If you are getting a “battery saver active” message, it means that your DeVille’s electrical system voltage has dropped to a critical level (less than 11.7 volts). Typical electrical systems run at 13+ volts with the engine running. The battery … Read more
Rotors are metal discs that are visible behind the DeVille’s wheel. They work together with the calipers and brake pads to slow down your Cadillac DeVille. Due to braking friction, rotors have to withstand and dissipate a tremendous amount of heat. This causes the rotor surface to be uneven making the brake pedal feel … Read more
P0031 is a generic code, which means that it has the same meaning for the Cadillac DeVille as it would any other OBDII equipped vehicle. As far as diagnostic trouble codes go, this is a relatively easy one to diagnose. It is usually caused by a bad oxygen sensor, or a wiring issue. Table of … Read more
While your Cadillac DeVille’s engine mounts can last the life of the entire vehicle, it is possible that they will go bad. Vibration and a clunking sound are the two most noticeable symptoms when driving the vehicle. There are plenty of visible signs as well. Engine mounts connect the engine to the frame of the … Read more
Your Cadillac DeVille’s ECM (Engine Control Module) is its brain. Just like a human’s brain, your DeVille can’t function without it. It is sometimes referred to as the ECU or PCM. It’s all the same thing. The ECM controls and directs your entire drivetrain (unless there is a serrate transmission controller). When an ECM starts … Read more
P0354 is a generic OBD2 code that indicates that ignition coil “D” has an issue with the primary or secondary wiring circuits. If your Cadillac DeVille has thrown this code, it may be accompanied by P0304. P0354 is a relatively straightforward diagnosis and is typically caused by a bad coil pack or wiring harness issue, … Read more
P0353 is a generic OBD2 code that indicates that ignition coil “C” has an issue with the primary or secondary wiring circuits. It has the same meaning for the Cadillac DeVille as it would any other vehicle. It is typically caused by a bad coil pack or wiring harness issue, although there can be caused … Read more
P0351 is a generic OBD II trouble code, which means that it means the same thing for the Cadillac DeVille as it would any other vehicle. It indicates that ignition coil “A” is malfunctioning. It is typically caused by a bad coil pack or wiring harness issue, although there can be other causes as well. … Read more
P0207 is an OBD II trouble code. It indicates there is a fuel injector circuit malfunction, in this case,it would be the seventh cylinder that is malfunctioning. P0207 is a generic code, which means that it has the same meaning for the Cadillac DeVille as it would for any other vehicle. When the PCM/ECM sees … Read more
P0087 is a relatively common OBD II trouble code. This code indicates that there is an issue with getting enough fuel pressure to the fuel rails. It’s generic, which means that it has the same meaning for the Cadillac DeVille as it would any other vehicle. This code is most common on vehicles that use … Read more