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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.
See how to seal up minor power steering fluid leaks2000 GMC C3500 Sierra SL 7.4L V8 Extended Cab Pickup (2 Door)
If your car is leaking a small amount of power steering fluid - see this video on how to fix the leak2000 GMC C3500 Sierra SL 7.4L V8 Extended Cab Pickup (2 Door)
Minor transmission fluid leaks can often be fixed with the right sealant - see how to do this2000 GMC C3500 Sierra SL 7.4L V8 Extended Cab Pickup (2 Door)
If you have an electrical component that doesn't work, try replacing the fuse first2000 GMC C3500 Sierra SL 7.4L V8 Extended Cab Pickup (2 Door)
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 you2000 GMC C3500 Sierra SL 7.4L V8 Extended Cab Pickup (2 Door)
Replacing a dirty air filter can improve gas mileage by up to 4%. Isn't efficiency great?2000 GMC C3500 Sierra SL 7.4L V8 Extended Cab Pickup (2 Door)