Don Jacobs helped make these videos
We are still working to obtain content for your car, however the video above is believed to have similar characteristics as your car.
A check engine light can indicate a broad spectrum of problems with your 1999 Mercury Grand Marquis. 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 1999 Grand Marquis, how to read the trouble codes and how to reset or clear the check engine light using a scanner on your Grand Marquis.
Intermittent Check Engine Light: If the check engine light on your 1999 Grand Marquis 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 Grand Marquis, 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 Grand Marquis 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 Grand Marquis diagnosed by a professional automotive technician.
The burnt out tail light: classic reason for a cop to pull you over - change yours now1999 Mercury Grand Marquis LS 4.6L V8
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 you1999 Mercury Grand Marquis LS 4.6L V8
Don't send mixed signals - if your turn signal doesn't blink, or blinks rapidly, you likely have a burnt out bulb1999 Mercury Grand Marquis LS 4.6L V8
Did you know that heat is worse for your battery than cold? Replace it every 4 years1999 Mercury Grand Marquis LS 4.6L V8
Sure you can take it in for a $19 lube, but are you OK with a stripped oil pan and cheap parts in return?1999 Mercury Grand Marquis LS 4.6L V8
Learn where your air filter is located and how to determine if it needs to be changed.1999 Mercury Grand Marquis LS 4.6L V8