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A check engine light can indicate a broad spectrum of problems with your 2008 Toyota 4Runner. 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 2008 4Runner, how to read the trouble codes and how to reset or clear the check engine light using a scanner on your 4Runner.
Intermittent Check Engine Light: If the check engine light on your 2008 4Runner 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 4Runner, 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 4Runner 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 4Runner diagnosed by a professional automotive technician.
Coolant hoses wear out over time and need to be replaced - check 'em early and often2008 Toyota 4Runner SR5 4.0L V6
If your battery has green or white cruddy deposits, it is probably not getting enough juice from and will likely wear out sooner2008 Toyota 4Runner SR5 4.0L V6
Replacing a dirty air filter can improve gas mileage by up to 4%. Isn't efficiency great?2008 Toyota 4Runner SR5 4.0L V6
Stop! Checking your brake fluid from time to time is a great way to ensure safe stopping2008 Toyota 4Runner SR5 4.0L V6
If you are leaking oil and parking on your oil spots each night, the oil is breaking down your tires' rubber2008 Toyota 4Runner SR5 4.0L V6
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!2008 Toyota 4Runner SR5 4.0L V6