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A check engine light can indicate a broad spectrum of problems with your 2002 GMC Yukon XL 2500. 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 Yukon XL 2500, how to read the trouble codes and how to reset or clear the check engine light using a scanner on your Yukon XL 2500.
Intermittent Check Engine Light: If the check engine light on your 2002 Yukon XL 2500 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 Yukon XL 2500, 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 Yukon XL 2500 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 Yukon XL 2500 diagnosed by a professional automotive technician.
Burnt out brake lights increase your chance of getting rear ended - check and change yours today2002 GMC Yukon XL 2500 SLT 8.1L V8
Small bulbs that burn out regularly - did you know you can replace these with LED lights?2002 GMC Yukon XL 2500 SLT 8.1L V8
If your blinker doesn't blink, or blinks rapidly, you likely have a burnt out bulb2002 GMC Yukon XL 2500 SLT 8.1L V8
Many cars will burn or leak a little bit of oil. Over time, this adds up and you might need to add some - learn how to here!2002 GMC Yukon XL 2500 SLT 8.1L V8
Help keep your car as responsive as you are by maintaining proper power steering fluid levels2002 GMC Yukon XL 2500 SLT 8.1L V8
If your car is leaking a small amount of power steering fluid - see this video on how to fix the leak2002 GMC Yukon XL 2500 SLT 8.1L V8