P0123 is a relatively common OBD-II code. It’s generic, which means it has the same meaning for the Pontiac Sunfire as it would any other vehicle. It’s an OBDII code that references issues with the Throttle Position Sensor (TPS). It is relatively serious problem since it can leave your vehicle stranded or severely limited. The … Read more
P0332 is a powertrain related OBD-II trouble code. It has the same meaning for the Pontiac Sunfire as it would any other vehicle. By definition, P0332 means that the vehicles ECM/PCM is getting a signal that is lower than the defined operational range from the knock sensor (Sensor 2 | Bank 2). Clearing this code … Read more
P0327 is a powertrain related OBD-II trouble code. It has the same meaning for the Pontiac Sunfire as it would any other vehicle. By definition, P0327 means that the vehicles ECM/PCM is getting a signal that is lower than the defined operational range. Clearing this code typically requires a new knock sensor or correcting … Read more
Your Pontiac Sunfire’s door ajar message can help you get a door all the way closed when you otherwise wouldn’t notice when it was open. Over the life of the vehicle, it is possible for the door ajar warning to stay on even when the doors are, in fact, not ajar. The door … Read more
Transmissions are an integral part of any vehicle, and overheating can lead to costly repairs or even permanent damage. Pontiac Sunfire owners should be aware of the common symptoms and causes of transmission overheating to prevent potential issues and ensure their trucks remain strong and reliable. In this article, we will discuss the common causes … Read more
When you start your Pontiac Sunfire, the OBD-II system runs a self diagnostic check on all major systems. If any of these checks fail, you will see a diagnostic warning light on the dash for the corresponding system. When the SRS system fails this check, you’ll see the SRS light. SRS stands for supplemental … Read more
P1682 is a diagnostic trouble code that indicates that your Pontiac Sunfire’s ignition switch is having a voltage problem. It is typically caused by a faulty ignition switch, although there can be other causes as well. There are two “circuits” to the ignition switch. The first one goes to the ECM through the throttle … Read more
A leaking radiator in a Pontiac Sunfire can cause the engine to overheat, resulting in expensive damage to the engine if not addressed immediately. This can include a bad head gasket or a cracked head, both of which can cause long-term damage to the vehicle. Identifying the symptoms of a radiator leak in your Sunfire … Read more
One of the most common problems that can happen to a vehicle is a heater core leak. If your Pontiac Sunfire 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
One of the most common problems that can occur in the life of a vehicle is a bad starter, that includes the Pontiac Sunfire. It is important to determine whether or not it’s a bad starter that is keeping the vehicle from turning over. If your Sunfire is not starting, don’t assume right away … Read more