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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 04-09-2009
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Did I get the wrong plugs?

I went to the stealership the other day to pick up some plugs, for my truck. They gave me motorcraft AGSF24N, I have a feeling they aren't the right plugs for my SOHC. I can't find my owners manual, my haynes manual is useless..... I don't care if I run platinum in my truck unless it's necessary? Before I break my arm in attempting to change my plugs can some please tell me if these are the right plugs or not/ if I HAVE to run platinums? Thanks
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Old 04-09-2009
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Run Autolite Double Platinum APP5144

Idk what the motorcraft cross number is. Best bet for you to do, is pull a plug, and compare. SOHC plugs are longer reach(more threads) than the OHV engine. ALOT of replacement plug books STILL havn't updated thier part number for the SOHC. Some still list the same plug as the OHV engine...which are not usable in a SOHC engine.

You need plugs already? Just curious why.
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Old 04-09-2009
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Originally Posted by Fx4wannabe01 View Post
Run Autolite Double Platinum APP5144

Idk what the motorcraft cross number is. Best bet for you to do, is pull a plug, and compare. SOHC plugs are longer reach(more threads) than the OHV engine. ALOT of replacement plug books STILL havn't updated thier part number for the SOHC. Some still list the same plug as the OHV engine...which are not usable in a SOHC engine.

You need plugs already? Just curious why.
Ugh.. I'm really feeling to lazy to go pull a plug right now( long day beer in hand lol ) I'm at 70K Km already, idle is a little rough, I pulled the #5 plug a week ago and the electrode was looking a little worn. Just figured it was time for a tune up.
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Old 04-09-2009
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I got off my lazy butt and went out and pulled a plug. The factory plugs ARE AGSF24N, but SOB! there is fresh oil on the plug. And I busted 2 knuckles removing one plug. GRR.......
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Old 04-09-2009
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Bodylift it. Makes plug changes a breeze. lol.
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Old 04-09-2009
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Bodylift it. Makes plug changes a breeze. lol.
That is no kidding, it took me FOREVER to get all of mine done and my hands were all cut up afterwards. We did Jakes (Lord of War) a week later and with the BL it took like a half hour while we shot the sh** and drank beer.
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Old 04-09-2009
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Add a suspension lift, and you can service just about everything perfectly. Even able to drop the front diff cover and change fluids. (i think. havn't actually tried yet. lol)
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Old 04-09-2009
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No lift in my future, except the belltech 6400's sitting in the living room, lol. I got the drivers side bank done. What a PITA. I am not looking forward to the passenger side at all. O well that will be a day when I have access to a jack and axle stands.
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Old 04-09-2009
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Ah man! You havn't even hit the funnest part yet!

lol



Lil tip...pull your inner fenders.
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Old 04-09-2009
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Ah man! You havn't even hit the funnest part yet!

lol



Lil tip...pull your inner fenders.

Sweet. I was thinking was going to be the easiest way. Still not looking forward to it though. lol. I am super glad that I have one of the swivel knuckles, makes life much easier.
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Old 04-09-2009
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keep in mind, if you have original plugs, dont be suprised if the right bank has different plugs in it than the left bank. One bank will have double platinum and one bank will have single platinum plugs in it
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Old 04-09-2009
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Originally Posted by Toreador4x4 View Post
keep in mind, if you have original plugs, dont be suprised if the right bank has different plugs in it than the left bank. One bank will have double platinum and one bank will have single platinum plugs in it
I got the same plugs from the dealer that are in my truck right now. They are not platinum.
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Old 04-09-2009
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Thats really odd that your truck came with nickel plugs in it

i would have guessed one bank had AGSF24P and one had AGSF24PP

OR...OR...the other bank has AGSF24P in it...youll have to find out
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Old 04-09-2009
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The part number on the plugs that the dealer gave me are AGSF24N. Those are the plugs that I pulled out of the drivers side banks as well.
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Old 04-09-2009
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Maybe ford is just getting really cheap??
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Old 04-10-2009
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Quote:
Originally Posted by Toreador4x4 View Post
keep in mind, if you have original plugs, dont be suprised if the right bank has different plugs in it than the left bank. One bank will have double platinum and one bank will have single platinum plugs in it
Why?
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Old 04-10-2009
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Quote:
Originally Posted by Toreador4x4 View Post
keep in mind, if you have original plugs, dont be suprised if the right bank has different plugs in it than the left bank. One bank will have double platinum and one bank will have single platinum plugs in it
No, both banks will be single platinum. The center electrode will have platinum on the plugs in one bank, while the ground electrode will have
platinum on the plugs in the other bank. This is due to the opposite polarity spark each bank gets, due to two plugs firing at the same time, in series.
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Old 04-10-2009
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Quote:
Originally Posted by 07rangersport View Post
The part number on the plugs that the dealer gave me are AGSF24N. Those are the plugs that I pulled out of the drivers side banks as well.
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Originally Posted by Takeda View Post
No, both banks will be single platinum. The center electrode will have platinum on the plugs in one bank, while the ground electrode will have
platinum on the plugs in the other bank. This is due to the opposite polarity spark each bank gets, due to two plugs firing at the same time, in series.
I don't think the plugs in my truck are platinum. Part number listed above^^
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Old 04-10-2009
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how does a BL make changing plugs easier? Wouldnt it make it harder since the block is lower down in the engine bay? I have a BL and it still took like 5 hours to do all 6 of mine. It was a PITA. That was my first time though so I don't know what it's like to do plugs on a stock height Ranger
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Old 04-10-2009
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Originally Posted by gts007 View Post
how does a BL make changing plugs easier? Wouldnt it make it harder since the block is lower down in the engine bay? I have a BL and it still took like 5 hours to do all 6 of mine. It was a PITA. That was my first time though so I don't know what it's like to do plugs on a stock height Ranger
You have a different 4.0 than we do, so that might make a difference in your experience.

Let this pic solve your question as to why it's easier to change plugs on a bodylifted ranger....



You have full access to each and everyplug from the fender...not above. Lifting the fenders up from the frame adds TONS of room.
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