Hey everyone! love the site and all the help is great! I recently purchased a 1998 f150 s/cab 4x4 with a 4.6 . I am changing the spark plugs on the weekend and wanted to know if there is anything that I should be aware of....
or if any body has some tips or tricks that will save me any future problems.

Thanks again

 

Allow a couple of hours or more to do this. YOu will need to remove all the things causing access interference, like injector connectors, vacuum lines, throttle cable, etc ...Don't be afraid to move things out of your way ... Rear plug boots may be hard to remove..you may need to use something to grab them ...if you use something like channel locks, use something to cover the "teeth" so that you won't damage wires/boots ... above all else, bring plenty of patience...the 1st time is a slow walk ...

 

Do you drink now? If not,you will after changing "these" plugs!

 

I very much agree!

 

One of the things that helped me the most was to get a spark plug socket and a 6 inch extension and RTV (glue) them together. It will allow you to remove the socket when reinstalling the plugs. The socket likes to stay down in the head. Also, be careful when re-tightening the plug, you don't want to strip the threads as plug blow-out can be the result. Lastly use dielectric grease on the inside of the boot when reinstalling the plug wires.
Good luck and have fun.

 

Ha, I did my plugs without moving one thing....and I regret it. I had a spark plug socket, a swivel, three 3 inch extensions, and a 7" extension. Take your time and do it right. The head is aluminum, so be sure to pick up some Anti-seeze for the threads of the plug. ALso get plenty of dielectric grease for the plug itself. Most of all, have fun.