Start off with the facts. I have a 2000 F150 7700. Its got the 5.4 with about 95k on the odometer. I have already purchased new motocraft plugs due to a check engine light problem I had earlier. (turned out to be the number 6 coil on plug) What I am looking for is some tips and specifications from some people who have already done this. I have heard alot of horror stories about the plugs in these trucks. Anyone know the correct torque for the plugs? what to remove to make the job easier? any special tool I will need? Thanks in advance for the help.

 

welcome to the forum!

here ya go.

http://mattstruck.com/sparkplugs/sparkplugs.html

 

thanks for the welcome and fast reply. Love the truck in your sig. I have read somewhere else not to use antisieze on the spark plugs. Is this just a preference from one guy to the next such as what plugs to run? Also did not see the torque spec in that write up. I dont want these things shooting out when I take off.

 

A company that specializes in repairing heads where a plug has blown is the source of the advice you are speaking of. It works. They have done a lot of research as well as experience. No antisieze(not needed with the nickle coated Motorcraft plugs) and torque to 28 ft/lbs. It has worked for many.

 

the 2 in the rear are a real pain if you dont have a body lift. Pull the fuel rails and injectors out of your way and it helps a ton!

 

I agree with @HighLife. The back two were a huge pain in the a**. In paticular the passenger side one.

The best advice I have for you is, make sure that you did tighten the spark plug. and it isn't mis threaded. Mine popped out halfway down the road. No major damage, but a real scare.

Have fun, this isn't that hard of a repair. Just time consuming, and patience testing.

-Tyler

 

I just replaced #4 (rearmost passenger side) today with just an extention, no u-joint needed nor did I remove the fuel rail. All I did was move the PVC hose out of the way a bit.

Driver's side is a bit more of a hassle.

A trick I've learned is when installing the new plug is not to seat it all the way in the spark plug socket. Only push the plug in just enough for the socket to hold it. Hand tighten it so that a few threads have caught on. Remove socket and swap it with a regular 5/8 deep socket. Now you can retighten it without worrying about disconnecting the extention from the socket and having it stuck on the plug.

 

Thanks for all the help guys. Hopefully its not to hot so I can get this done this weekend. At least it should not be as big a pain in the a$$ as my bros 3v 04 f150. He broke two plugs and had a hell of a time.

 

Got it done. Took me 2.5 hours but the tips really helped. Loosened the fuel rail on the driver side and was able to snake them all out. Back passenger side was a real PIA. I noticed my back three passenger side plugs were all a little rusty while the rest of the plugs were not. Is this common?

 

I would say it is more common that all the plugs are in different levels of wear. Some of mine were completely gone, and others just looked dirty.

I think it more or less just depends on when they were change, and if they were all changed at the same time or not. Just a thought though I could be wrong

Great job on doing it yourself, you saved a bunch of money

--Tyler

 

ANyone have an idea what most dealerships charge to install new plugs on a 5.4?

 

The one here gets about $200.