How to Replace Spark Plugs on Ford F-150 F-250. http://ford-trucks.com/how-tos is the leading Ford Trucks resource for technical, DIY guides. Spark plugs provide the spark needed to ignite the fuel in your engine. If you don't replace them, ou can develop a misfire, which can damage your catalytic converters. To read our step-by-step article, please visit http://www.ford-trucks.com/how-tos/a/ford-f150-f250-how-to-replace-spark-plugs-359984.
Spark plugs are crucial to both keep your motor running smooth and keep you from burning extra fuel. Shall I replace my own spark plugs or get the dealership to do the job? This is a question that many of us ask ourselves during a lifetime of driving a car. Although it's cheaper to replace spark plugs on your own, it requires experience and skill and can be a moderately difficult to get the job done. The last thing you want is to spend money for the parts and put the time into replacing them yourself only to learn from a mechanic that it wasn’t done right. You can do it right if you follow our step by step instructions.
Disengage the negative or back cable on the battery in order to remove the engine cover's three bolts with a 10 millimeter hex head.
Locate the coils. Coils transform the battery's low voltage to the thousands of volts needed to create the electric spark needed to ignite the fuel. You will have 6 for a V6 or 8 for a V8. Use your socket to remove the bolts.
Once you have removed the bolt, you will need to remove the electrical connector.
Then carefully pull the coil out of the plug well.
Now you need to remove the actual spark plug. Insert your socket into the plug well and loosen the spark plug. Turn left for loose, right for tight.
After you remove the spark plugs, use a shop vac or air compressor to blow out the plug well. It's always a good idea to check it with a flashlight to be sure you got everything out of there.
Use penetrating oil to spray the plug wells. Do the same for all plug wells and allow them to soak for 2-3 hours.
Use Nickel anti-seize lubricant on the sleeves of the plugs. Anti-seize is used to protect the threads in the cylinder head. But don’t over apply it. And be careful not to get it on the porcelain or electrodes.
Open the dielectric grease bottle and apply it to the inside area of the boots. This grease helps the rubber boot slide onto the ceramic insulator of the spark plug.
Discard the old spark plug and take out your new one. The spark plug below has been pre-gapped so no gapping is necessary. If you do need to gap your plugs, check your emissions label under the hood. You can pick up a gapping tool at any auto parts store.
Install the new spark plugs the same way you removed them and tighten to 13 pounds per foot using your torque wrench.
Be sure you reinstall your parts in the reverse order in which removed them.
• Reinstall your coils
• Reconnect the electrical connector
• Put your engine cover back on
Then start up your truck. Your engine should start up smoothly and should no longer misfire. You finally have that spark back in your life!
Tags: How to Replace Spark Plugs on Ford F-150 F-250, Ford F-Series (Automobile Model), Spark Plug (Invention), How to, Replace Spark Plugs, 포드 F-250, F-150, F-250, Super Duty, DIY, Do It Yourself