2000 4.0L spark plug ????
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Joined: Jan 2009
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2000 4.0L spark plug ????
Was looking at the Owners manual for the 2000 4.0L I just got and it is very specifis about when removing each plug for inspection you put it back in the same cylinder. It says that cylinders 1,2,&3 have a "PG" suffix, and 4,5 & 6 have a "P" suffix. Why is this? Also, I want to replace the plugs and the manual says to use only plugs with the service part number suffix letters "PP". It calls for Motorcraft AGSF-22PP. What other platinum plugs will work? What Bosch Platinum number will work? Thanks Funtwohunt
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Joined: Jan 2003
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From: Connecticut
The plug differences have to do with the nature of the Ford "waste spark ignition" and polarity. See: Spark Plug Tech
Bosch spark plugs are not a good choice for the Ford "waste spark" ignition. Go with the currently recommended Motorcraft (part# SP500) or Autolite (part# APP-103) replacement plugs.
Bosch spark plugs are not a good choice for the Ford "waste spark" ignition. Go with the currently recommended Motorcraft (part# SP500) or Autolite (part# APP-103) replacement plugs.
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Joined: Apr 2011
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See: Spark Plug Tech
Good info from the "Spark Plug Tech" link with this exception:
(Should read spark plug end terminals and inside wire boots)
Good info from the "Spark Plug Tech" link with this exception:
(Should read spark plug end terminals and inside wire boots)
Smear dielectric grease on the spark plug electrodes and tips to make them waterproof and prevent arcing.
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