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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 08-28-2005
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Spark Plugs

What are the best plugs and wires for our trucks?
Thanks
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Old 08-29-2005
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hahahahaha, if you do a search youll find about 20 threads that are EXACTLY like this. the answer to your question is motorcraft plugs and wires
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Old 08-29-2005
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*coughAutolitecough*
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Old 08-29-2005
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To stop any confusion.


Autolite is a knockoff Motorcraft... Same difference.
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Old 08-29-2005
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And Autolite is usually easier to obtain, hence my recommendation
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Old 08-29-2005
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ya i shouldve searched but o well, thanks
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Old 08-29-2005
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Yes you should have. BE GONE wretched pile of filth....just kidding :)
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Old 08-29-2005
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lol, thank you sir, you made my day!! im a pile of crap! o well, least i have a r-f shirt to wear now!!
haha!
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Old 08-31-2005
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does anyone know how to tell if the plug is a platinum or a double platinum? the guy at the place said what he gave me is a double plat. and i thought that would be like a double electrode or something,
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Old 08-31-2005
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Quote:
Originally Posted by vansnxtweek
does anyone know how to tell if the plug is a platinum or a double platinum? the guy at the place said what he gave me is a double plat. and i thought that would be like a double electrode or something,
Thanks
Double platinums have small but visible platinum coated lumps on both the center and side electrodes. Single platinums have a single lump on EITHER the center OR the side electrode, depending on which cylinder the plug is from.

The correct single platinum plug is installed at the engine factory to work with the the coil pack polarity for that cylinder. Ford sells the double plats for replacement since they can be used in any cylinder, avoiding any possible errors in field service replacement.
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Old 08-31-2005
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is the electrode the white part, or the metal part in the center? im not seeing any lumps anywhere
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Old 08-31-2005
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The white part is the insulator. Look carefully in the spark gap. A double platinum will have the small platinum lumps facing each other in the gap - one on the center electrode, one on the side electrode. This is the best photo I could find.

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