Pontiac Grand Am: P0720 → OSS Circuit → Malfunction

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

Pontiac Grand Am P0108:  MAP Barometric Sensor → High Input 

  P0108 is a generic OBD-II trouble code.  It indicates your Pontiac Grand Am’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 … Read more

Pontiac Grand Am 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 Pontiac Grand Am as any other vehicle.   If your Grand Am 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 … Read more

Pontiac Grand Am: 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 Am.  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 Am:  Signs of a Bad Water Pump

Your Pontiac Grand Am’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 Am: Running Hot → Causes

If your Pontiac Grand Am 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 Am Running Hot Symptoms Obviously, the main symptom … Read more

Pontiac Grand Am Rod Knocking Diagnosis

A rod knock is a very serious problem.  If your Pontiac Grand Am 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

Pontiac Grand Am: Bad Torque Converter → Symptoms + Diagnosis

Your Pontiac Grand Am’s torque converter is responsible for converting the energy generated by the engine at the flywheel and transferring it to the transmission, creating a bridge between the engine and the transmission.   In the Pontiac Grand Am, a bad torque converter is often caused by bad transmission fluid, worn clutches, bad seals, … Read more