How do u check spark plugs on a 2p03 ford taurus

Buy a spark plug socket and ratchet --remove the plug wire and use socket to remove plug look at plug and compare to chart https://www.google.com/search?rlz=1C1CHBF_enUS812US812&q=how+to+read+spark+plug+color&tbm=isch&source=univ&sa=X&ved=2ahUKEwib0K7Ule_jAhUHtlkKHdDNDdsQsAR6BAgGEAE&biw=1600&bih=789

Hi Gina you need a rachet with an extension and a spark plug socket 5/8"make sure it has a wrench fitting on top for the spark plugs in the back with that size wrench and a gapping gauge for checking the air gap between the firing pin and the electrode at the base of the plug take off 1wire at a time and turn the ratchet counterclockwise to loosen the plug make sure the engine is cold when your going to do this now slide the gapping gauge in between the electrode at the bottom and the firing pin in the middle of the plug and read the number on the gauge your gap is on the emissions label on the radiator support set it by bending the electrode so that it's at that number specified on the label if the pin is really worn change all plugs with new ones the back plugs will need the wrench for the top of the socket good luck Stephen

Pull the spark plugs out and check that they are not burned , also check the gap..and if your car has close to 100k miles just replace them all.. one at the time so you don't put the cables in the wrong order.