Leading and trailing plugs... backwards.
I changed my plugs today for the first time since buying the car (about 4k miles ago). According to the paperwork there's only ~10k on the new motor which was installed by PFS. Anyways, the trailing and leading plugs were installed backwards. Anyone ever run into this before? Car seemed to run just fine. The plugs that came out don't look too bad. New ones went in the right way, will see if the car runs noticably better when my new wires come in tomorrow.
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im not sure.... :dunno: .... but i had 4 trailing plugs in mine,when i bought it..
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You sure it was installed backwards or you "think" it was?
Remember T is for top and L for lower, thats how its easy to remember. So 7s would be on the bottom and the 9s would be on top. |
Originally Posted by preludesh2000
im not sure.... :dunno: .... but i had 4 trailing plugs in mine,when i bought it..
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Yep, what i run, 9s around, which is trailing all around
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I got OEM plugs. They have a little picture on each of the boxes and say "leading" and "trailing" in big red letters. Pretty hard to mess it up.
I'm sure they were in there backwards. The 7's were in the top and the 9's were in the bottom. BTW: if you do a search there is at least one thread on here where someone gets it backwards. The correct order (7 Leading (bottom), 9 Trailing (top)) is shown on page G-19 of the shop manual. |
and i think leadings got 2 blue rings close to the wire side. that way you could tell with out pulling them out.
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