Difference in Spark plugs?
- Thread starter SHO87
- Start date
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Bob Gervais
Wut?
The only spark plugs for the V6 SHO that are going to be a different length are the Denso plug, and the original AGSP32PP. All others are slightly longer, because they are made to SAE specs. The original V6 plugs were not.
Here's a cool writeup by someone way smarter than me:
http://www.shotimes.com/php-bin/mod...le=article&mode=thread&order=0&thold=0&sid=62
Here's a cool writeup by someone way smarter than me:
http://www.shotimes.com/php-bin/mod...le=article&mode=thread&order=0&thold=0&sid=62
frosho
WOLFMAN
I visually compared my new Motorcraft SP497's (aka AGSP32FM - the new finewire replacements for the old double platinums) to my old Autolite APP3924's, and the Motorcrafts appeared to be very slightly shorter. Since switching to the Motorcrafts, I have not had any problems with water getting into the plug wells, whereas I would have problems almost every time it rained with the Autolites in there. 
I'll have to remember to measure a plug with my calipers the next time I have one out.
I'll have to remember to measure a plug with my calipers the next time I have one out.
Bob Gervais
Wut?
Meh, perhaps I should throw in the fact that I've never measured them personally, nor have I had any issues with the 32PP's, 32FM's, Autolites or Densos sealing with plug wires.
Also, that SHOTimes information is ancient. Perhaps the FM's are the same length as the PP's. (yes, I said length, and PP)
Also, that SHOTimes information is ancient. Perhaps the FM's are the same length as the PP's. (yes, I said length, and PP)
ok folks here we go..... Dont get mad ... jUST TOOK OUT MY BOSCH +4'S. THEY LOOK FINE.. NICE AND WHITE.. ALMOSTY NEW LOOKING.. pUT IN THE AUTOLITES.. THE WEBSITE SAID THEY WERE PRE-GApped . checked and all at .44 Now my car runs worse... What ********. Even the ad said that they were made for dis systems. Many people said Boschs were not good.. how can this be? Also i have bosch 8 mm wires and tthe autolites seat perfect on the plug wells so i have no idea how water can get in there. I must need a cam or tps sensor.. what else? no codes whatsoever?
JRA2000TL
The Complainer
You're doing it wrong.
32MTX
New Member
maybe u got the plug wires routed wrong, I think their is a sticky here of cylinder #'s and the coil position they goto
I run Denso's this last time, look nice..... I think rockauto.com is best if your planning to do something and you want a particular brand, no searching around to see what store will order the parts for you, just a couple of clicks and its on the way......
I run Denso's this last time, look nice..... I think rockauto.com is best if your planning to do something and you want a particular brand, no searching around to see what store will order the parts for you, just a couple of clicks and its on the way......
beaudeen
BEAUDEEN
Looks like we've got the only FREAK SHO's
that like the Bosch Plugs...what ya gonna do...
Bob Gervais
Wut?
I'd do a KOER, along with the cylinder balance test.
I'm confused about the plug change too. Was it misfiring before, or did the misfire start after you changed plugs?
Bob Gervais
Wut?
SP497 is the stock number for the 32FM plug, so yes. Once you take the plugs out, you'll see the FM number on them.
Bob Gervais
Wut?
Hmm. Could be a few things, what shape are the plug wires in? Plug well seals good, no oil on the plug wires?
I'm not a fan of throwing parts at it 'til it's fixed, gets real expensive that way. Yes, codes will show up even without the CEL on. The computer will store them.
plugs
Sorry to bring up an old thread but I didn't think the SP497 was the same as 32FM. I was searching old threads so I could order new plugs tonight and saw this comment below. Anyone else can confirm???? I'm planning on ordering Denso PK16PR-L11. You can still get those at most parts stores like Advanced.
Sorry to bring up an old thread but I didn't think the SP497 was the same as 32FM. I was searching old threads so I could order new plugs tonight and saw this comment below. Anyone else can confirm???? I'm planning on ordering Denso PK16PR-L11. You can still get those at most parts stores like Advanced.
frosho
WOLFMAN
Copied from Rockauto. They are indeed the same. And FWIW the Motorcraft plugs are available at some parts stores too. I think I got mine at Advance.
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