Sparkplug Removal
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Senior User
Joined: Aug 2010
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Sparkplug Removal
Okay sorry for asking all these stupid questions and telling some stupid answers just like to help. What i was wondering how you get to the coil packs on a 1998 ford expedition where the coils you cant even see and how do you get them out.
Fleet Owner
Joined: Apr 2008
Posts: 24,322
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From: 0,0,1
The same way you make it with some hot honey in the dark...feel your way around.
New User
Joined: Aug 2010
Posts: 20
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From: Cumming, GA
I'm just putting back together a '98 Expedition from replacing all 8 coils and plugs. Just start taking crap apart that's in the way...it's not easy if you've never done it before, as I discovered. Fuel rails have to come off, removal is easy but they can be ornery about going back on all the way. Some have said they didn't have to remove the two heater hoses on the passenger side going in to the firewall, but I frankly see no way on earth of getting around them without removing them. Primary fuse junk and power steering bracket have to be moved out of the way, PCV hose, and I'm sure I'm forgetting a couple other little random things.
There's lots of threads about tuning up these engines already out there though.
There's lots of threads about tuning up these engines already out there though.
Laughing Gas
Joined: Oct 2005
Posts: 1,226
Likes: 42
From: The OC
I'm not sure how different your '98 is from my '00. I have a 5.4 and only removed the cover over the intake, zip-tied the heater hoses out of the way, and had plenty of tools. You will need extensions, elbows, and I want to say a 5/16 socket for the COP's. Use electrical tape to hold all sockets and extensions together so they don't fall off. Just be patient and you'll be fine. I also used 2 pieces of 2" foam on top of the engine so I could lay down. If you have the same engine compartment layout as me, you don't need to remove all that stuff. Good luck and let us know how you did!
Mountain Pass
Joined: Mar 2007
Posts: 101
Likes: 1
From: NW Ohio
plugs
Hello,
I have a 05' Expy, and have yet to change the plugs, with 108K miles. I've heard anything from nightmare to not too bad, if you got the right tools...which I have. Anybody have any advice for me when I do this? I was going to do it this weekend in my brother in laws heated shop, but my wife has other plans for me. I believe that I need to get this done, just simply for the fact that my fuel economy (I know, economy and expedition don't go together...i.e. oxymoron) has dropped by 2-3 mpg. I was also told that my engine is the 3 valve, and that mech. said those are especially bad to do...
thanks for any input.
dano
I have a 05' Expy, and have yet to change the plugs, with 108K miles. I've heard anything from nightmare to not too bad, if you got the right tools...which I have. Anybody have any advice for me when I do this? I was going to do it this weekend in my brother in laws heated shop, but my wife has other plans for me. I believe that I need to get this done, just simply for the fact that my fuel economy (I know, economy and expedition don't go together...i.e. oxymoron) has dropped by 2-3 mpg. I was also told that my engine is the 3 valve, and that mech. said those are especially bad to do...
thanks for any input.
dano
New User
Joined: Nov 2006
Posts: 14
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Dano, I would follow lv2race's advice.
I had a lot of foam when I did mine too. A good work platform helps a lot too. Be sure to work clean, blow out every plug well before removing the plug. Take your time torquing the plugs.
It's not that bad of a job once everything is pulled out of the way. I was nervous when breaking loose every plug though.
I had a lot of foam when I did mine too. A good work platform helps a lot too. Be sure to work clean, blow out every plug well before removing the plug. Take your time torquing the plugs.
It's not that bad of a job once everything is pulled out of the way. I was nervous when breaking loose every plug though.
