The engine light is on do I need water in the radiator and where is it this is a 2004 lincoln aviator I just had an oil change last month.

when was the engine last serviced ? could just be that simple , check the OBD for any fault codes as well

Attached is a video link for you. Lincoln is made by Ford so yours is the same. I recommend you replace the radiator hoses if you haven't replaced them in the last 5 years. You do not have to bleed the cooling system on your truck. https://youtu.be/MKHnFY4WU8o

After an oil change you have to reset the sensor. Your mechanic should have known this. You turn the key on and push button for three seconds to reset it. This should be in the fuse box under the hood goodluck. I hope this helps

turn key to on but do not start. pump gas peddle 3 times real fast. this should reset the message

Press the Setup Menu: Select the Oil Change function: Press the reset control to reset oil change..

Make sure the oil did not drain out. Sometimes the oil filter does not seal perfectly and oil leaks out. Also check and see if your oil pump is still functioning properly. Oil pressure can also drop if the seal in the engine is worn. If this happens, oil will enter the engine and burn off. Hope this helps in some way

Yes you should be able to do it yourself. Just go to your local parts store and give them the necessary info for your vehicle. They should have the bulb you need in stock, but if not they can order it and usually have it the next day. If you ask them nicely they might even install the bulb for you. Sometimes the access hole to the side of your radiator might be a tight fit.

I had the same problem. Maybe you still have some bad ignition coils. I would change them all out. Very simple to do yourself.

Also, check the hose that is connected to your PCV valve. Mine had a huge hole in it from melting and it was sucking in to much air.

THE PROBLEM SOUNDS LIKE THE COIL PACKS, THERE IS ONE FOR EVERY CYLINDER, LINCOLN WILL REPLACE THEM FREE I THINK UP TO 150,000 MILES. THEY WILL ONLY REPLACE FAULTY COIL(S).

Hows your oil level?when was the last time you had the oil change ?