Your Cadillac DeVille leaves the factory with a catalytic converter. It can run into problems over the normal life of the vehicle, and is often accompanied by OBDII code P0420. Below we’ll cover the location, price, and symptoms of a bad torque converter in your DeVille. Menu: Catalytic Converter Price DeVille Catalytic Converter Location … Read more
One of the most common issues with any vehicle, including the Cadillac DeVille, is when it has fuel pressure regulator issues. A bad fuel pressure regulator can cause all sorts of problems. A bad fuel pressure regulator can cause various symptoms in your Cadillac DeVille, the most common being engine performance problems. This can result from either too … Read more
If you find your Cadillac DeVille‘s steering wheel shakes or vibrates when you press the brakes, it is almost always the brake rotors that are the cause of the problem. There are plenty of other issues that can cause the steering wheel to wobble. But, if your DeVille is only shaking when braking, that’s … Read more
If you own a Cadillac DeVille, you may have noticed white exhaust smoke coming from your car on occasion. This can be concerning, and it’s essential to understand the possible causes behind this phenomenon to address the issue promptly and efficiently. Several factors can contribute to white smoke emanating from your car’s exhaust pipe, and … Read more
The check engine light indicates that you need to service a vehicle soon. If your Cadillac DeVille has a flashing check engine light means that there is a catalyst damaging misfire (it can damage the catalytic converter and O2 sensors). If your car has a flashing check engine light, it means you need to service … Read more
Your Cadillac DeVille‘s braking system is designed to handle thousands of miles of braking with no intervention from you. When its brakes begin to squeak, they are telling you that they need some attention. The most typical cause of squeaky brakes are the brake pads themselves, but there are other issues that can cause … Read more
P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Cadillac DeVille as it would … Read more
One of the most common (and inconvenient) problems with the Cadillac DeVille is when it has no heat coming from the heater. Not having a functioning heater makes driving much less comfortable, and can be a sign of certain issues. At the simplest level, there are two main reasons why the heater is not … Read more
P0405 is a generic OBDII trouble code. It deals with the signal coming from the EGR system. Since it is a generic code, it has the same meaning for the Cadillac DeVille as it would any other vehicle. The EGR system allows a certain amount of the DeVille’s exhaust to re-enter the combustion chamber, which … Read more
P0431 is a standard OBDII trouble code, which means that it has the same meaning for the Cadillac DeVille as it would any other vehicle. It is closely related to P0430 (which is one of the most popular OBDII codes). Warm Up Catalyst Efficiency → Below Threshold (Bank 2) When it’s the only trouble code … Read more