If you hear your Pontiac Sunfire rattling when going over bumps, this sound could be caused by various issues, from minor to more serious.  ...

If your Pontiac Sunfire has a soft brake pedal, it is a sign of a serious brake system issue. It’s usually caused by air entering the system in some ...

If your Pontiac Sunfire has a humming noise at high speed, it can be distracting and, depending on the cause, dangerous. We’ve outlined the most ...

If your Pontiac Sunfire’s AC system is not working, it can be uncomfortable and downright dangerous on a hot day. There are A LOT of issues that can ...

Dash lights flickering and failure to start is a very common issue that can happen to the Pontiac Sunfire. While your first impulse may be to think ...

P0725 is a common OBD2 code that can occur in the Pontiac Sunfire. It indicates an issue with the engine speed sensor input circuit (which measures ...

C0035 is a manufacturer-specific chassis trouble code that can occur in the Pontiac Sunfire. GM designated C0035 to indicate an issue with the left ...

P0523 is a standard OBD2 trouble code that can occur in the Pontiac Sunfire. In layman’s terms, it indicates the signal from the oil pressure sensor ...

P015B is a generic trouble code, which means it has the same meaning any vehicle. In the case of the Pontiac Sunfire, It indicates that the Oxygen ...

Daytime running lights (or DRL) are specialized lights that come on when your Pontiac Sunfire’s regular headlights are turned off. Their purpose is ...