Spark Plug Tool for 5.4 l 3valve motors

[mustangguy289]

i havent seen how the splitfires are built, but ive seen more than one plitfire drop an electrode before...not good. Also, theyre 100k plugs, do you reaaly think youll change them again?

I'm using the E3 Diamondfires not the split fires. There have been some writeups on these plugs and one guy even tested a plug to 300 ft-lbs in a vice and got not get it to separate.

The factory plugs are 100k and mine are bad at 65k which seems common among the F150's.

[greenbullitt]

I'm using the E3 Diamondfires not the split fires. There have been some writeups on these plugs and one guy even tested a plug to 300 ft-lbs in a vice and got not get it to separate.

The factory plugs are 100k and mine are bad at 65k which seems common among the F150's.

thats because theyve updated the plug. there is a new heat range being used

[mustangguy289]

Well i did the plug change. NONE of the plugs broke. Everything went smoothly... the back cyl on the passenger side is a pain in the ass.

Well now the truck runs like shit. I went back through and checked all connections, checked to make sure i did not knock a vacuum hose or any other connector loose.

It shakes at idle ( noticeable in the cab) and has a slight hesitation. I can also hear a "POW" every couple of beats out of the tail pipe if i put my ear about a ft from it ( real faint sounding).

Any ideas of what might have happened so I can look further into it in the morning?

[JimD]

Cel on? If no vac lines or connections gotta be a bad plug, wtf else could it be. BTW i only put stock motorcraft back in there, IMO that splitfire etc crap ain't all its cracked up to be.

[mustangguy289]

Cel on? If no vac lines or connections gotta be a bad plug, wtf else could it be. BTW i only put stock motorcraft back in there, IMO that splitfire etc crap ain't all its cracked up to be.

Is splitfire and E3 the same company?

No Cel light yet. I have only driven about 3 miles.

I am going off of reviews on the F150 boards and everybody, hands down, was saying E3 was the best ONE PIECE plug on the market. I am going to recheck everything in the morning. Cyl #4 (back passenger) side gave me a ton of trouble . I had extensions and knuckles on there that kept binding. Maybe i did not get it all the way tight and just thought it was because of binding?????

Someone recommended removing the computer to get better access to that plug. I will redo that one and see if it fixes it.

[JimD]

Yep those back ones are a bitch. Don't know about the plug being the same, we just put stock replacements in. Any way you could find someone with a scanner and run live data. Shit you could possible be fixin to mess with the wrong cylinder.

[mustangguy289]

I removed computer and was able to get another turn or two out of the #4 spark plug. Started it up and it runs like a champ so far. I am letting the computer reset now and will go for a test drive in a minute.

[mustangguy289]

If anyone wants to buy the Lisle 65600 tool... I have one brand new never used with case and instructions. $75 shipped anywhere in the US. I accept paypal.

[lowthreeohz]

How did your truck respond to being reset? Mine idled worse than before after i got my plugs and COP boots changed... but it's since calmed down a little bit. I guess i was expecting it to be fixed magically.

[mustangguy289]

The first 5 seconds was a little rough but then it was fine. I let the truck idle until operating temperature was reached. Then I cycled on the a/c for a few minutes. Then I drove it. Runs great now.

My initial problem was the back passenger plug not being tight enough. Getting the computer out of the way allowed me to tighten it correctly.

[lowthreeohz]

The first 5 seconds was a little rough but then it was fine. I let the truck idle until operating temperature was reached. Then I cycled on the a/c for a few minutes. Then I drove it. Runs great now.

My initial problem was the back passenger plug not being tight enough. Getting the computer out of the way allowed me to tighten it correctly.

What's procedure for resetting PCM? want to try it a before i head home possibly.

[mustangguy289]

I am not sure of the exact procedure on these vehicles but.... But I had the battery unplugged for about an hour. When i was finished i just turned the truck on and let it idle until it reach operating temperature. Then I turned the A/C on for a few minutes... and then I drove it.

On our Mustangs I have always just bolted the battery cables on, started the car, and drove off. My dad always threw a fit and said you are supposed to let it idle until it gets hot, turn the a/c on, then drive it to reset the computer right. I never really listened... but i figured on this truck.. with the luck I was having.. I would give it a shot haha.