[99 BLUE V6]

There's also a sticky on V6 plugs

[v6kid]

Where?

[99 BLUE V6]

Originally Posted by v6kid Where?

V6 tech then work shop then link then menu. its alot of work but its there lol lol

[sixshooter]

I could not find a sticky on it, nor find anything using the search function. Oh well, you guys gave me the info I needed. I got some motorcraft plugs for it and its running good. Thanks for the info, you da man MM!


Andy!

[236Mustang]

glad it worked out for ya manye

[ReverendDexter]

+1 for NGK coppers. They shouldn't be any more than $2/plug.

[236Mustang]

No matter what, Do not get BOSCH spark plugs

[ReverendDexter]

Originally Posted by 236Mustang No matter what, Do not get BOSCH spark plugs

+1

+eleventybillion if talking about multi-electrode Bosch plugs.

[Rich J]

I just went with normal old autolite coppers, nothing fancy at all. Been working fine for me, no problems or anything. I had double plats in the car before that and I would mis fire every so often, they were gapped correctly I checked when I pulled them out. Swapped the coppers in and havent had a problem yet and its been a couple months since.

[99 BLUE V6]

Originally Posted by sixshooter I could not find a sticky on it, nor find anything using the search function. Oh well, you guys gave me the info I needed. I got some motorcraft plugs for it and its running good. Thanks for the info, you da man MM!Spark Plug Tech -------------------------------------------------------------------------------- Andy!

Many Ford engines come from the factory with different platinum spark plugs on the left and right sides of the engine. On a 2000 3.8L V6 you will find platinum plugs marked AWSF-42E on the LH side (cylinders 1,2,3) and AWSF-42EG on the RH side (cylinders 4,5,6). They appear to have different electrodes. Why is this?

Ford does it to take advantage of the "waste spark ignition system" on our cars, in which there is one coil for each pair of spark plugs. One half of the plugs see a different polarity from the other half.

Ford Engine Cylinders Firing Order
1.9L 4 1 3 4 2
2.3L 4 1 3 4 2
3.8L 6 1 4 2 5 3 6 (1 2 3 are red)
4.6L 8 1 3 7 2 6 5 4 8
4.6L 32 Valve 8 1 3 7 2 6 5 4 8


The chart above illiustrates the firing orders and polarities for Ford waste spark ignition systems. The red numbers are positive firing spark plugs. The blue numbers are negative firing spark plugs.

These differing polarities cause the spark plug electrode metal (platinum) to erode differently, depending on the direction of the current flow of the spark. On one side of the engine metal is transferred from the tip to the electrode. On the other side it goes from electrode to tip. This allows Ford to save a tiny bit of platinum on each plug installed at the factory by using plugs with only a platinum tip on one side and plugs with only a platinum electrode on the other. Doing this may only save a few cents per plug, but it adds up. Just think how many spark plugs Ford installs.

The replacement platinum plugs specified for our cars (AWSF-42EE) have platinum both on the tip and the electrode, so they can be used on either side. Another replacement option (the one I chose) is to install copper plugs in the same heat range (AWSF-42C). I install new copper plugs every 15,000 miles

and thats the sticky