Pontiac Grand Prix: 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 Pontiac Grand Prix.  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 … Read more

Pontiac Grand Prix:  Signs of a Bad Water Pump

Your Pontiac Grand Prix’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 … Read more

Pontiac Grand Prix: Running Hot → Causes

If your Pontiac Grand Prix is running hot, it is a serious problem.  If it gets too hot, it leads to overheating.  A hot engine is usually caused by a few different things, such as the thermostat, water pump, radiator, or outside conditions.     Pontiac Grand Prix Running Hot Symptoms Obviously, the main symptom … Read more

Pontiac Grand Prix Rod Knocking Diagnosis

A rod knock is a very serious problem.  If your Pontiac Grand Prix has a knocking rod, it’s almost always going to be caused by a failure of the rod bearing or the rod caps (leading to a spun bearing) or lack of oil.   If you do have a rod knock, don’t ignore it … Read more