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A check engine light can indicate a broad spectrum of problems with your 2002 Volvo S80. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light. The video above shows how to locate the on board diagnostics (OBD) plug on your 2002 S80, how to read the trouble codes and how to reset or clear the check engine light using a scanner on your S80.
Intermittent Check Engine Light: If the check engine light on your 2002 S80 is intermittent, try to take note of the conditions when this happens. For example, does it happen when you accelerating, driving on the highway or does it appear at low speeds? This will help your mechanic evaluate the issue. Steady Check Engine Light: If your check engine light is on every time you operate your S80, you need to have it checked as soon as possible, especially if you notice performance problems or unusual noises. Flashing Check Engine Light: If your check engine light is flashing, stop driving your S80 and have it towed to your nearest mechanic - you probably have a very serious problem with your car and you risk ruining your engine by driving it. If you are unsure about what your diagnostic trouble codes mean; have your S80 diagnosed by a professional automotive technician.
Minor transmission fluid leaks can often be fixed with the right sealant - see how to do this2002 Volvo S80 2.9 2.9L 6 Cyl.
White light when you back up - yup, they burn out and you can replace them with bright LEDs2002 Volvo S80 2.9 2.9L 6 Cyl.
The best way to fix leaking hoses is to replace them, but if you don't have time, a stop leak product might work for you2002 Volvo S80 2.9 2.9L 6 Cyl.
Small bulbs that burn out regularly - did you know you can replace these with LED lights?2002 Volvo S80 2.9 2.9L 6 Cyl.
Learn where your air filter is located and how to determine if it needs to be changed.2002 Volvo S80 2.9 2.9L 6 Cyl.