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

Plugs?

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Old Feb 1, 2008 | 07:29 PM
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Default Plugs?

Im looking for my spark plugs to replace them and all i could see were some black connectors beside my injectors under the fuel rail. Is that them the wires just looked too small to me,I prob sound retarted but just wanted to make sure.
Old Feb 1, 2008 | 07:44 PM
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Default RE: Plugs?

The black connectors are C.O.P. or coil on plugs connectors and they are held in by a small screw which can be taken off with an extension and a wrench, I recommend you replace your spark plugs with motorcraft, but a good plug of your choice with do fine for your application. You will need a long extension with a spark plug socket to get to all the plugs because the fuel rail well be in your way. You dont need to take your fuel rail off like some may say. It can be done with it on and a long extension.
Old Feb 1, 2008 | 07:46 PM
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Default RE: Plugs?

your car has COP's (coil on plug). Pull the COP (black thing you were referring to) off. It's like a spark plug boot. The plug is under there, inside the head.
Old Feb 1, 2008 | 07:46 PM
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Default RE: Plugs?

Ok and I have heard something about plugs shooting out or something is there something i need to do when I thighten them back in?
Old Feb 1, 2008 | 07:47 PM
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Default RE: Plugs?

ORIGINAL: stangracer04

Ok and I have heard something about plugs shooting out or something is there something i need to do when I thighten them back in?
No, just make sure you use anti-seize on the plug threads. DO NOT over tighten the plugs.
Old Feb 1, 2008 | 07:51 PM
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Default RE: Plugs?

K thanks
Old Feb 1, 2008 | 07:56 PM
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Default RE: Plugs?

Use a torque wrench...and torque them down to 11lb-13lb. There alsois some controversy about using neversieze on the threads. But if your check the tightness every few months you should be good. Only change your plugs when your engine is cold or you could remove the threads. Due to the dissimliar metals.
Old Feb 1, 2008 | 09:10 PM
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Default RE: Plugs?

i should of used anti-seize on my cobra motor when i put the plugs in but i didnt. so i think im going to chagnet ehm at like 15k.
Old Feb 2, 2008 | 02:45 PM
  #9  
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Default RE: Plugs?

What exactly does anti seize do? Is it like lock tight?
Old Feb 2, 2008 | 04:03 PM
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Default RE: Plugs?

NO, it is the opposite of lock-tight, it prevents the plugs from becoming seized or stuck and damaging the threads.



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