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A check engine light can indicate a broad spectrum of problems with your 2000 GMC C3500. 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 2000 C3500, how to read the trouble codes and how to reset or clear the check engine light using a scanner on your C3500.
Intermittent Check Engine Light: If the check engine light on your 2000 C3500 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 C3500, 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 C3500 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 C3500 diagnosed by a professional automotive technician.
Learn where your air filter is located and how to determine if it needs to be changed.2000 GMC C3500 Sierra SL 7.4L V8 Extended Cab Pickup (2 Door)
If your battery has green or white cruddy deposits, it is probably not getting enough juice from and will likely wear out sooner2000 GMC C3500 Sierra SL 7.4L V8 Extended Cab Pickup (2 Door)
Did you know that heat is worse for your battery than cold? Replace it every 4 years2000 GMC C3500 Sierra SL 7.4L V8 Extended Cab Pickup (2 Door)
Cars burn, leak and otherwise dispense of their oil. Check your level frequently and top up when necessary2000 GMC C3500 Sierra SL 7.4L V8 Extended Cab Pickup (2 Door)
Transmissions that leak fluid usually have never been flushed and the seal is finally leaking. The right stop leak product can cure a lot2000 GMC C3500 Sierra SL 7.4L V8 Extended Cab Pickup (2 Door)
Flushing the coolant in your car is not that hard and will extend the life of your engine tremendously - learn how here!2000 GMC C3500 Sierra SL 7.4L V8 Extended Cab Pickup (2 Door)