4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Are these spark plugs shot? pic included

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Old 03-17-2010, 06:38 PM
  #11  
itsdaveonline
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Well thanks all for answering my questions. my car has about 122,000 mi so i imagine they have been previously replaced... Every single plug has been a complete pain in the *** to take out, they were put in ridiculously tight. although the new ones went in just fine with no issues.

If only we could remove this spark plug virtually!

I just simply dont have the proper tools, ive been using a U joint connector that fits spark plugs connected to a rachet with an extension. But my rachet is so puny its not even funny...I think i might need a L connector or something... Im broke as hell, otherwise id just pay someone 100$ to do it

As far as the passenger side goes did you all just remove the majority of the intake stuff?
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Old 03-17-2010, 08:56 PM
  #12  
itsdaveonline
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Originally Posted by 7 UP Mustang
Yes, use some WD 40 as that might help it to come out. I do not think it is bent, if it is that will be a first for me. Good luck.

Larry
haha this is what made it so damn hard...the plug was actually bent at an extreme angle and it took forever to get out, i had to call for help...



But 3 down, 3 to go. Thanks all for help!
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Old 03-17-2010, 09:27 PM
  #13  
JRad405
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if you have a spark plug socket then it shouldn't be too bad.

my plugs were pretty tough to get out too. use some antiseize stuff when you put the new ones in. that way when you replace them the next time they are hopefully easier to get out.
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Old 03-17-2010, 10:06 PM
  #14  
tbirdscwd
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those things are ugly!!!!
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Old 03-17-2010, 11:49 PM
  #15  
jrherald420
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Dont be surprised if it runs sh*tty and theres a chance it could throw a MIL light on.
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Old 03-18-2010, 01:37 AM
  #16  
nascrchi
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lol wow! what a nightmare for this dude. No offense, and am glad to know that you removed the plug successfully. I;d say put the next three on asap and buy wires if possible.
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Old 03-18-2010, 07:10 AM
  #17  
Sxynerd
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Well your first problem is using Platinum plugs. Copper or go home. Platinum plugs are for yuppies that don't change their plugs and neglect their car.
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Old 03-18-2010, 10:51 AM
  #18  
jrherald420
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Originally Posted by sxynerd
Well your first problem is using Platinum plugs. Copper or go home. Platinum plugs are for yuppies that don't change their plugs and neglect their car.
Amen brother!
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Old 03-18-2010, 11:40 AM
  #19  
cliffyk
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I will be "odd man out" on this one--there is nothing inherently wrong with platinum plugs, I have run them in everything from family cars, to supercharged Miatas, to high performance bikes (150+HP/l) and small aircraft.

The only place conventional plugs (copper core or otherwise) will a significant difference in in very high compression, and high boost f/i applications, where combustion chamber pressures are very high and spark "blow out" becomes an issue. The tungsten "massive" electrodes (vs. precious metal "fine wire", common terms in aircraft maintenance) require a higher voltage to ionise the gap which makes them less apt to blow out under high CC pressures.

For 99.44% of n/a and modest boost f/i engines all they do is wear out faster.

I run Champion 3401 single platinum plugs in my lightly modded '03 GT and last time I had it on the rollers it churned out 262/305 at the wheels, with over 30k miles on the plugs--they've got about 55k on 'em now and it runs like a Champ (no pun intended). I'll probably change then in the next 10k or so...

--------------------------------------------
To the OP, I bet those were the original plugs. AFAIK the partially threaded plugs were OEM only and not sold otherwise by dealers or in the after market. They were due to be changed at 100k miles, but could easily still be sparking at 133k
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Old 03-18-2010, 01:56 PM
  #20  
jrherald420
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I guess id rather run the cheaper copper plugs and just change them out each year. Im swapping the platinum plugs out of my Mark 8 back to copper plugs because it likes the copper ones better, that and i like to wrench on my cars.
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