Wirelessly posted (Timberwolf)

Out of curiosity, at how many kms are you guys changing out your plugs and wires? I know it depends on how hard we drive our rigs, just digging around on what you guys think. 100k on stock plugs just seems to be tad long IMO. Im around the 60k mark. Cheers

 

i have them sitting in y room waiting for this weekend to go in. im at 78k

 

Wirelessly posted (Timberwolf)

Hey right on! Stock plugs. Sweet.

 

yup, ordered from AdvanceAuto.com and entered a code to get 20% off. then ordered the wires from rockauto.com and entered a code and got them for 5% off.

Spark Plugs<--Click Here

Enter the code P20 in your shopping cart to get 20% off purchase

RockAuto isnt listing the wires I bought right now

here was my thread, you can see part numbers:

https://www.ranger-forums.com/general-technical-electrical-18/my-truck-gonna-love-me-118790/

 

Here are some photos of my fine-wire platinums with 103K miles on them. You can see the effect of the opposite polarity spark on each bank, by which electrode has the most erosion:


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now my truck came stock with three Platinum spark plugs on one bank, and three Nickel spark plugs on the other bank...wierd. i researched it and sure enoughm that was the way it came factory

 

No, from the factory, the plugs in one bank have a platinum bead on the center electrode, and the plugs in the other bank has a platinum bead on the GND electrode. The replacement plugs are either double platinum, or fine-wire platinum (only the center electrode is platinum).

 

70K I changed mine to...




I just rolled over 72K

 

its funny though, if you go to the dealership (i called) and ask what spark plugs, and if you go to motorcraft.com, it recommends the SP-412 for the 4.0, which specified as a Nickel plug. So had I went with dealership, id have gotten these plugs. It is very unlear which plugs you need unless you take your old plugs out and go get the replacements.

a guy i talked to on RPS who pulled his factory plugs out of his 2001 4.0 said he had 3 nickel and 3 platinum. however i have read somewhere that the nickel plugs have a platinum bead on electrode (kinda like what your talking about)

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Either way, im replacing all of mine with the Fine Wire platinums, i think it will run good!

 

When i Bought my truck, my bro took it to a shop to have a tune up done, i had 2 different kinds of plugs in mine. That was at 55k, not sure if they had ever been changed before but my guess is no, so thats odd that it came from factory that way.

 

see above few posts, we've been discussing that matter.

 

by the looks of it, most of you guys are changing them out around the 50-70k mark. Right on. My rig is running ok as of now. But I am looking to do a tune up, like right now. I know my rig can run smoother than it is now with a fresh tune up. I was going for new stock wires, but the plugs.....not really sure what I wanna run. I plan on getting a programmer very soon to accommodate with my intake and exhaust upgrades. So, am I in need of a higher grade plug than stock?

 

@Takeda....great pics man

 

Absolutely NOT! Run the recommended Motorcraft fine wire platinum. As far as your intake and exhaust upgrades, you could have sent me the money you spent, and got the same improvement in performance!

All the K&N CAI will do is contaminate your MAF sensor with dirt and oil, and gum up your throttle body. With the larger diameter intake tube, the air velocity will decrease, screwing up the air flow measured by the MAF sensor.

On the positive side, you will have more noise, and you will get a slight performance increase from W.W.R. (Wallet Weight Reduction)

 

Well lol thanks for your advise and criticism! Are you pro stock or something? Most programmers do ask If you run aftermarket parts to work with your rig. I know im not gonna get HUGE hp gains, but some does help with the BL and bigger than stock shoes. I like it. Hey, it's a truck. But ya, I hear ya on the plugs. My airflow intake was adjusted

 

Thanks for your opinion buds!

 

Oooooooook. Did you get out everything you wanted to say? Hey, thanks man. Have a great valentines day