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  Switch Platinum to Standard Sparkplugs?

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Author Topic:   Switch Platinum to Standard Sparkplugs?
Ryan Wilke
Gearhead

Posts: 3237
From: Stanton, Michigan, zip 48888
Registered: Oct 2000

posted 10-11-2006 10:16 AM     Click Here to See the Profile for Ryan Wilke        Reply w/Quote
This is regarding a very stock '02 Taurus, powered by a standard 3.0L "Vulcan" or "U" V-6 engine.

For some unknown reason , I'd like to switch from platinium to standard-type sparkplugs. My information says this engine should have Motorcraft AWSF-32PP (platinum type) sparkplugs. My autoparts dude says I can swap them out for Autolite #103 plugs without any ill effects to the life or performance of the engine.

Secondly, the engine had 3-Motorcraft AGSF 32PM at cyl# 4,5,& 6 and 3-Motorcraft AGSF 32PGM platinum plugs at cyl. #1,2,& 3 now...I have no idea why there were different plugs between front 3 plugs and the back 3 plugs.

Question 1) Anyone switch from platinum to std plugs and have any problems?

Q2) The Autolite #103s come out-of-the-box at 0.045". The removed platinum plugs seem to be gapped at 0.060". If I make the switch, what should I gap the std #103 plugs at and how long will they last?

Q3) Are the Motorcraft AWSF-32PP, the AGSF 32PM and the AGSF 32PGM plugs really the same plug just with 'super-sceded' part numbers?

Thanks in advance for your help/assistance, Fellas!
Ryan

SUBMARINER MUSTANGER
Gearhead

Posts: 1474
From: Grandview, Missouri
Registered: Jun 99

posted 10-11-2006 12:29 PM     Click Here to See the Profile for SUBMARINER MUSTANGER        Reply w/Quote
You can go from platinums to standard with no performance issues. At the dealership, when we get an "el-cheapo" customer who doesn't want to pay the higher price of a double platinum plug tune up, we'll throw the coppers in for them. The biggest advantage with platinums over standard coppers is just the life of the plug....(and the price).

As far as the difference in the plugs currently in your car, more than likely, somebody MEANT to change all 6 at one time, did the front 3 since 4,5,6 are in the front, and lost interest when faced with doing the ones in the back, although on a 3.0 12V engine, those aren't really bad. Try doing them on a 24V 3.0!

The gap should be listed on the emissions sticker under the hood, which should say something like .052 - .056 . I gap them to .054.

------------------
Sub Stanger/Oxford White 2003 Mach 1.
MustangsandMore Member #91
MCA Member #61863


Past Mustangs: '84 GT 5-speed; '91 GT auto; '70 M-code Mach 1, grabber yellow; '95 GT-S 5 speed, green, wrecked and totalled; 1995 GT-S 5 speed, bright yellow; '94 6-banger, wifes; '89 LX 5.0 vert, '90 LX 5.0 hatch, '69 M-code Mach 1, 4 speed, 1990 5.0 LX 'vert w/ AOD converted to T-5.

Ryan Wilke
Gearhead

Posts: 3237
From: Stanton, Michigan, zip 48888
Registered: Oct 2000

posted 10-11-2006 04:35 PM     Click Here to See the Profile for Ryan Wilke        Reply w/Quote
Sub Stanger,

Thanks for the reply and opinions!

I was thinking the same thing - that someone in the past only changed the front plugs and not the rear plugs. You're also correct in that the back 3 weren't very difficult to change.

I'm thinking the OEM Emissions Sticker that would of been under the hood went 'bye-bye' when the hood, radiator support & grill were replaced after the car had a 'close encounter' with a Whitetail deer! So, what I'm saying is there isn't a sticker on it now..... Am I understanding you correctly that regardless of which plug I use (the platinum or the non-platinum) they should be gapped at 0.052" - 0.056" ?

Thanks again for your help & assistance!
Ryan

Ryan Wilke
Gearhead

Posts: 3237
From: Stanton, Michigan, zip 48888
Registered: Oct 2000

posted 10-17-2006 11:43 AM     Click Here to See the Profile for Ryan Wilke        Reply w/Quote
Just for the record (in case someone does a 'search' on this subject someday):

According to my newly-aquired Chilton's Repair Manual (#26702, for 1996-2005 Taurus/Sable) the "U" or standard OHV 3.0L V-6 engine takes a Motorcraft AWSF-32PP or equivalent sparkplug gapped @ 0.042" to 0.046".

Whereas, the "S" or OHC 3.0L V-6 engine from '96-'02 take a Motorcraft AGSF-32F or equivelant, gapped @ 0.052" to 0.056" and the 2003 and later "S" engines take a Motorcraft AGSF-32FM or eqivalent gapped @ 0.054".

Ryan

mgmradio
Journeyman

Posts: 1
From:
Registered: Oct 2006

posted 10-17-2006 02:29 PM     Click Here to See the Profile for mgmradio        Reply w/Quote
Ryan,
Those were the factory installed plugs that you took out.One side was equiped with platinum electrodes and the other with platinum anodes.(saved Ford a few cents).Your engine fires 2 plugs at the same time(ie:1&5)So the spark jumps backwards in 1 plug.

Ryan Wilke
Gearhead

Posts: 3237
From: Stanton, Michigan, zip 48888
Registered: Oct 2000

posted 10-18-2006 08:47 AM     Click Here to See the Profile for Ryan Wilke        Reply w/Quote
mgmradio,
WELCOME TO M&M, DUDE!!

Thanks for solving my mystery pertaining to the different plugs in my '02 Taurus!

TWO PLUGS FIRING AT THE SAME TIME? WOW - THAT SOUNDS KINDA WIERD & WILD TO ME.... But hey, even at 114K miles, the girl runs like a top!

Thanks again!
Ryan

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