2001 5.4L Ford Expedition spark plug replacement

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nandrews873

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Hi I'm new to The forum, and only know the basics when it comes to auto mechanics…
I looked around the forum but couldn't find anything specific on the 01' 5.4L.

I'm looking for documentation on the order of operations for changing the spark plugs and spark plug coils in my vehicle. There are at least 2 spark plugs that seem to be really tricky to get at. Do I have to take certain things components out in order to get at them? Or is there an alternative method without having to get too deep into disassembly?

I was hoping one of you knowledgeable people could point me in the right direction.

Thank you so much and I appreciate any help or guidance you could provide.
 
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nandrews873

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Ellison Brown III

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Just completed this task on my ‘04 Eddie Bauer with the 5.4liter. The hardest plug to get to is the one on the passenger side rear; closest to the firewall. What I did to make room was removed the PCM off the firewall. Gave me plenty of room to work at the point.

What I do recommend more than moving parts out of the way (as this varies per individual doing the task) is purchasing a few items to have on hand for replacement purposes. To be more specific, I 100% guarantee something will break due to old age. Between the coil clips you may need to move out of your way to ripped spark plug boots to cracked PCV hoses. Just a good idea to have on hand in the event something happens.

I recommend PartsGeek.com for coils, and replacement coil wire harness clips. If you break the coil clip on the passenger side, against the firewall, it’ll be a little tough to replace. I ended up using RTV on the male end of the coil, and a little bit inside the female end (being careful not to interfere with the connection surfaces). After making connection add a little more RTV on the exterior… hoila!!! It’ll hold until the next time you need to get at it. I did this because I could not access the area with a wire cutter, wire stripper, and crimper. Way too tight. Best part it’s too far back to be seen, so only you will know.

Other than that I can’t really think of any other obstacles. Oh, I kinda remember a few things to help you on a step-by-step basis…

1- remove engine cover (if equipped)
2- remove PCV hoses (passenger & driver side)
3- remove cruise control vacuum line (if equipped)
4- remove PCM from firewall
5- remove only coil plug and spark plug boot as you do each cylinder (one at a time)

Can’t think of anything else. Even looked the task up for you… nothing really worthy of noting in the steps. Someone see anything I left out. I just do these jobs without much thought anymore. As I see obstacles I tackle them.
 

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texasscot

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thanks this was really helpful however im looking for specific step by step instructions like something I might find in a service manual so I know what parts, if any, I need to take off to get to those last two spark plugs.
I did my 2003 5.4 last week.
Assuming it’s the same…
For access without too much grief:
Remove plastic top cover.
No need to remove fuel rails.
Remove plugs from injectors.
On passenger side, pull out PCV valve and pull off the skinny vacuum hose that goes to some mushroomy thing.
On drivers side:
remove triangular plate that supports steering fluid reservoir.
Pull off the two vacuum hoses that go left/right over the area.
Unplug a couple of electrical plugs that sort of restrict access.

drivers side is easier than passengers side.
Each plug has its own special charm that almost requires a different configuration of jointed sockets and/or length of extension.

Always use the rubber tube trick to start threading the plugs.

If it’s not the same, sorry for wasting your time lol (I’m just glad mine are done).
Best of luck!
 

texasscot

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Just completed this task on my ‘04 Eddie Bauer with the 5.4liter. The hardest plug to get to is the one on the passenger side rear; closest to the firewall. What I did to make room was removed the PCM off the firewall. Gave me plenty of room to work at the point.

What I do recommend more than moving parts out of the way (as this varies per individual doing the task) is purchasing a few items to have on hand for replacement purposes. To be more specific, I 100% guarantee something will break due to old age. Between the coil clips you may need to move out of your way to ripped spark plug boots to cracked PCV hoses. Just a good idea to have on hand in the event something happens.

I recommend PartsGeek.com for coils, and replacement coil wire harness clips. If you break the coil clip on the passenger side, against the firewall, it’ll be a little tough to replace. I ended up using RTV on the male end of the coil, and a little bit inside the female end (being careful not to interfere with the connection surfaces). After making connection add a little more RTV on the exterior… hoila!!! It’ll hold until the next time you need to get at it. I did this because I could not access the area with a wire cutter, wire stripper, and crimper. Way too tight. Best part it’s too far back to be seen, so only you will know.

Other than that I can’t really think of any other obstacles. Oh, I kinda remember a few things to help you on a step-by-step basis…

1- remove engine cover (if equipped)
2- remove PCV hoses (passenger & driver side)
3- remove cruise control vacuum line (if equipped)
4- remove PCM from firewall
5- remove only coil plug and spark plug boot as you do each cylinder (one at a time)

Can’t think of anything else. Even looked the task up for you… nothing really worthy of noting in the steps. Someone see anything I left out. I just do these jobs without much thought anymore. As I see obstacles I tackle them.
This is a great write up. I was typing as you were posting so I didn’t see it first.
I liked the diagrams! Hard to see why my hands were bleeding and my chest area was covered in bruises by the end as it looks so easy!
 

Speed 330

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Hi I'm new to The forum, and only know the basics when it comes to auto mechanics…
I looked around the forum but couldn't find anything specific on the 01' 5.4L.

I'm looking for documentation on the order of operations for changing the spark plugs and spark plug coils in my vehicle. There are at least 2 spark plugs that seem to be really tricky to get at. Do I have to take certain things components out in order to get at them? Or is there an alternative method without having to get too deep into disassembly?

I was hoping one of you knowledgeable people could point me in the right direction.

Thank you so much and I appreciate any help or guidance you could provide.
Go on YouTube look up the Ford Loco Moco Channel great great technician for Ford SHO as you step by step how to remove plugs put them back in properly
 

Yupster Dog

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Go on YouTube look up the Ford Loco Moco Channel great great technician for Ford SHO as you step by step how to remove plugs put them back in properly
You mean just how it is in post #2 except with the correct name and even a link?
That one?
 
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