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COP Help/Replacing Spark Plugs

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Old Aug 24, 2010 | 08:00 PM
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COP Help/Replacing Spark Plugs

I am trying to change my spark plugs for the first time on my 2003 Lincoln Navigator and I am having a hard time getting the COP out. Any ideas on how to do this?

Thanks
 
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Old Aug 24, 2010 | 09:45 PM
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Originally Posted by 2003Navi
I am trying to change my spark plugs for the first time on my 2003 Lincoln Navigator and I am having a hard time getting the COP out. Any ideas on how to do this?

Thanks
Which cylinder number? Ford engines are 1-4 on pass side, 5-8 on driver's side. 1 & 5 are the two cylinders closest to the radiator, 4 & 8 are nearest the firewall.
 
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Old Aug 24, 2010 | 10:05 PM
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Originally Posted by 2003Navi
I am having a hard time getting the COP out.
Can we assume you took out the COP hold-down bolt? If so, grab the COP and twist it back and forth to break it's hold on the spark plug.

If it's a clearance issue you're having you might have to move the fuel rail out of the way.
 
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Old Aug 24, 2010 | 10:29 PM
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There is no hold down bolt on the navigatprs COP.

Got to this link and read about how I did mine. https://www.ford-trucks.com/forums/9...g-r-and-r.html
 
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Old Aug 25, 2010 | 08:05 AM
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Did you use any special tools to break the hold on the spark plug?
 
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Old Aug 25, 2010 | 08:52 AM
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Cyclinder #1
 
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Old Aug 25, 2010 | 09:20 AM
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Nope I just twisted and pulled on it. You may have one that is burnt onto the plug. Mine were all fine and came off as soon as I pulled on them.
 
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