Cadillac DeVille Radiator Leak: Symptoms, Causes, Fix

A leaking radiator in a Cadillac DeVille can cause the engine to overheat, which can lead to costly engine damage if not addressed quickly. This damage can include a bad head gasket or a cracked head, both of which can have long-term effects on the vehicle’s performance. Identifying the symptoms of a radiator leak in … Read more

Cadillac DeVille Leaking Heater Core Diagnosis

One of the most common problems that can happen to a vehicle is a heater core leak.  If your Cadillac DeVille has a leaking heater core, it is not a breakdown risk.  Although, it is necessary to make sure that the lost coolant is replaced.  It can cause damage to the vehicle in other ways, … Read more

Cadillac DeVille Bad Starter → Symptoms & Diagnosis

  One of the most common problems that can occur in the life of a vehicle is a bad starter, that includes the Cadillac DeVille.  It is important to determine whether or not it’s a bad starter that is keeping the vehicle from turning over. If your DeVille is not starting, don’t assume right away … Read more

Cadillac DeVille: P0720 → OSS Circuit → Malfunction

P0720 is a generic OBD II trouble code, which means that it has the same meaning for your Cadillac DeVille as it would any other vehicle.  It indicates that your DeVille’s OSS (Output Shaft Speed Sensor) is reporting a malfunction. It’s typically caused by a bad OSS, or a wiring problem. The OSS works by … Read more

Cadillac DeVille P0108:  MAP Barometric Sensor → High Input 

  P0108 is a generic OBD-II trouble code.  It indicates your Cadillac DeVille’s MAP (manifold absolute pressure) sensor’s voltage reading is outside of the normal operating range.  The voltage is too high.  It’s most commonly caused by a bad MAP sensor, wiring issue, or vacuum leak. The MAP sensor measures the air pressure coming into … Read more

Cadillac DeVille P0443 Code: Meaning, Causes, How To Fix

P0443 is a very common OBD2 code.  It’s generic, meaning it has the same definition for the Cadillac DeVille as any other vehicle.   If your DeVille has this code, it indicates the EVAP purge control valve circuit is malfunctioning. This is typically caused by a short in the wiring to or from the purge … Read more

Cadillac DeVille: P0562 – System Voltage Low

P0562 is a common OBD-II trouble code.  It’s a general code, which means that it means the same thing for any vehicle, including the Cadillac DeVille.  P0562 indicates that the system voltage is below 10 volts for a solid minute.  With the engine running, the system voltage should be 14.1-14.4 volts, and it’s typically caused … Read more

Cadillac DeVille:  Signs of a Bad Water Pump

Your Cadillac DeVille’s water pump is one of the most crucial parts of the engine.  If it doesn’t pump water through the engine, it’s going to overheat and do a lot of damage.  Typical signs of a bad water pump include overheating, white smoke, a bad smell, rough idle, and more. A water pump works … Read more