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A check engine light can indicate a broad spectrum of problems with your 2004 Toyota Tacoma. 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 2004 Tacoma, how to read the trouble codes and how to reset or clear the check engine light using a scanner on your Tacoma.
Intermittent Check Engine Light: If the check engine light on your 2004 Tacoma 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 Tacoma, 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 Tacoma 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 Tacoma diagnosed by a professional automotive technician.
Minor transmission fluid leaks can often be fixed with the right sealant - see how to do this2004 Toyota Tacoma Pre Runner 3.4L V6 Crew Cab Pickup (4 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 you2004 Toyota Tacoma Pre Runner 3.4L V6 Crew Cab Pickup (4 Door)
Harsh downshifts? Slipping gears? You might be low on transmission fluid2004 Toyota Tacoma Pre Runner 3.4L V6 Crew Cab Pickup (4 Door)
Coolant hoses wear out over time and need to be replaced - check 'em early and often2004 Toyota Tacoma Pre Runner 3.4L V6 Crew Cab Pickup (4 Door)
Help keep your car as responsive as you are by maintaining proper power steering fluid levels2004 Toyota Tacoma Pre Runner 3.4L V6 Crew Cab Pickup (4 Door)
Leaking coolant is usually a sign that your water pump needs to be replaced. This video shows you how to quickly plug it2004 Toyota Tacoma Pre Runner 3.4L V6 Crew Cab Pickup (4 Door)