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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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  #1  
Old 05-12-2008
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Tune-up questions

2004 FX4II 4.0 SOHC

I just purchased Motorcraft AFGSF34FP plugs. Under my hood it shows the gap should be 1.32-1.42mm, which converts to .052-.056 in. Does this sound correct?

How and when should you clean the EGR components?

Where in the hell is the PCV????
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  #2  
Old 05-22-2008
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PVC is on the back of the Driver Side Valve Cover. The is the right gap. So mess with your EGR Valve unless you really need to. ranger1999xlt
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Old 05-23-2008
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I have a 2002 XLT 4.0 ranger under my hood the spark plug gap is 0.62- 0.68 I know this for sure because I just changed my plugs last week.
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Old 05-23-2008
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Originally Posted by rangerbert View Post
I have a 2002 XLT 4.0 ranger under my hood the spark plug gap is 0.62- 0.68 I know this for sure because I just changed my plugs last week.
I'm afraid that a gap over a half inch is way too big!!!!

The correct gap is 0.052 - 0.056
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Old 05-24-2008
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Originally Posted by Takeda View Post
I'm afraid that a gap over a half inch is way too big!!!!

The correct gap is 0.052 - 0.056

Well thats not a half inch anyways. a half is .5 (where .056 is 56 thousandths) Secondly he may have an aftermarket coil pack.
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Old 05-24-2008
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Originally Posted by karrbass4life View Post
Well thats not a half inch anyways. a half is .5 (where .056 is 56 thousandths) Secondly he may have an aftermarket coil pack.

DUH.....I believe 0.62 to 0.68 is over a half inch, which I said!!
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Old 05-24-2008
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well fellas i dont have an aftermarket coil. The .62-.68 spark plugs gap is what it says under the hood on the front radiator support. Check yours out and see what it says.
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Old 05-25-2008
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FYI, tune up interval is 100k. 80k ish is a good time to do it. Ford runs a double platinum to get that kinda of life out of the plug. Also you should replace the O2's at the same time.
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Old 05-25-2008
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Originally Posted by rangerbert View Post
well fellas i dont have an aftermarket coil. The .62-.68 spark plugs gap is what it says under the hood on the front radiator support. Check yours out and see what it says.

Check your decimal points, I've never heard of a plug gap over a half inch.
Even 0.062 would be a huge gap!
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Old 05-25-2008
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I'm not making this up. Reading it off of my factory sticker .62-.68 spark plug gap. I even showed it to my brother in-law he didn't believe me either till I showed him the proof.
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  #11  
Old 05-25-2008
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I'm not making this up. Reading it off of my factory sticker .62-.68 spark plug gap. I even showed it to my brother in-law he didn't believe me either till I showed him the proof.
Why don't you post a picture of it?
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  #12  
Old 05-25-2008
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The box is printed by man, not god. .62-.68 is a typo. GG bad tech writer.

I mean the spark plug barely has a diameter of a half inch.
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Old 05-26-2008
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yeah if you had a plug gap of .6 im pretty sure it would contact teh piston. Also I dont know how you are going to stretch the little metal tab out that far. Im pretty sure you mean .06
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Old 05-26-2008
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yeah, it woudl be a .062, I gapped mine at .065, but thats with an aftermarket coil pack.. and soon will be switchign into my better pulstar ones after i order up a replacement one :-)


A good gap is a .062 for the plugs, unless they state differently.
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Old 05-26-2008
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Originally Posted by WowMike2001 View Post
yeah, it woudl be a .062, I gapped mine at .065, but thats with an aftermarket coil pack.. and soon will be switchign into my better pulstar ones after i order up a replacement one :-)


A good gap is a .062 for the plugs, unless they state differently.
The Pulstar Plugs are a total scam, check out the discussion here:

http://www.therangerstation.com/foru...ad.php?t=18310
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Old 05-26-2008
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I can't post a pic because I don't have a digital pic.
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Old 05-26-2008
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Camera
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Old 05-26-2008
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Originally Posted by Takeda View Post
The Pulstar Plugs are a total scam, check out the discussion here:

http://www.therangerstation.com/foru...ad.php?t=18310
None of them have used it though, how can they give a valid statement if they have no proof of any of it?

In fact, I actually checked every link you gave in that post, along with what every single person claimed.. and not a single person has tried them with any valid benchmarks.. I'm usually the type to say no to no proof. It's sort of like saying an orange doesn't smell like an orange, if you haven't smelled an orange and no one else has smelled an orange, how would they know with only speculation what the orange smells like? (that was a wierd mouthful )

Last edited by WowMike2001; 05-26-2008 at 06:48 AM.
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  #19  
Old 05-26-2008
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None of them have used it though, how can they give a valid statement if they have no proof of any of it?

In fact, I actually checked every link you gave in that post, along with what every single person claimed.. and not a single person has tried them with any valid benchmarks.. I'm usually the type to say no to no proof. It's sort of like saying an orange doesn't smell like an orange, if you haven't smelled an orange and no one else has smelled an orange, how would they know with only speculation what the orange smells like? (that was a wierd mouthful )
Most of them, including myself, can see technically (electronics theory) why they won't work.

Scam companies like this prey on people like yourself that don't understand basic electronics principles.
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  #20  
Old 05-26-2008
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what about this: http://www.amcyclopedia.org/node/3001

http://www.newcelica.org/forums/show...63#post4292463 <-- showing some benchmarks dyno-style between many different variatons of plugs


Ahh anyway, I won't thread-jack this.. I'll stop posting on it :-D
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  #21  
Old 05-26-2008
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Originally Posted by WowMike2001 View Post
Total BS.....In looking at your signature, I see you believed the false claims of the Screamin' Demon! Any ignition aftermarket company that claims HP or MPG increases from their product is LYING! If you aren't getting a misfire, you can't gain any HP, or MPG.
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  #22  
Old 05-26-2008
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Originally Posted by WowMike2001 View Post
what about this: http://www.amcyclopedia.org/node/3001

http://www.newcelica.org/forums/show...63#post4292463 <-- showing some benchmarks dyno-style between many different variatons of plugs


Ahh anyway, I won't thread-jack this.. I'll stop posting on it :-D
Here are just a few other scam companies, including the Pulstar Plugs! I find it interesting that the Tornado site includes a bible verse so you might think they are legit!!


http://www.petro-mag.com/

http://www.tornadofuel-saver.com/?gc...FQo2GgodfTuRCA

http://www.pulstarpulseplugs.com/default.asp?KID=3340

Great examples of how companies prey on people, who don't have any technical (or engineering) background!
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  #23  
Old 05-26-2008
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Never heard about Petro before, now THAT sounds funky.. but I have heard of the tornado (who hasn't) and that has been fully proven to not do anything with our engines in particular. Anywho, we should probably continue this in a different topic if applicable.. i hate thread jacking :-(
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  #24  
Old 05-26-2008
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Originally Posted by WowMike2001 View Post
Never heard about Petro before, now THAT sounds funky.. but I have heard of the tornado (who hasn't) and that has been fully proven to not do anything with our engines in particular. Anywho, we should probably continue this in a different topic if applicable.. i hate thread jacking :-(

Good idea, I started a new thread here:

https://www.ranger-forums.com/forum2...464#post965464
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  #25  
Old 05-26-2008
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Good idea, I started a new thread here:

https://www.ranger-forums.com/forum2...464#post965464
Cool, thanks Bob :-)
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