V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

Serious problem with my car...

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Old 12-04-2009, 07:16 PM
  #11  
sIx
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Oh man, I wish I knew you had bosch plugs.. I coulda told you that... (also found out the hard way) NGK and Motorcraft is the only thing I would use..
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Old 12-04-2009, 07:30 PM
  #12  
Synyster06Gates
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Originally Posted by Derf00
I had bosch in my 00 and never had any problems. What did you gap them at? Both of those plugs are really carbonized..(running Rich or fuel not buring all the way.) Check the wires for cracks The 1 Plug wire can rub against the header and the #3 gets hot because it's towards the back of the motor.
All gapped to .054'', right in spec. New plugs perform MUCH better.
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Old 12-05-2009, 12:48 AM
  #13  
NeoTokyo
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Ahh good good. From my end it sound soo F ucking bad >.<

Get us another vid of your proper exhaust sound
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Old 12-05-2009, 11:15 AM
  #14  
projectresto83
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Always go motorcraft or autolite. Good job finding your problem though.
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Old 12-05-2009, 03:55 PM
  #15  
Synyster06Gates
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Originally Posted by NeoTokyo
Ahh good good. From my end it sound soo F ucking bad >.<

Get us another vid of your proper exhaust sound
http://www.youtube.com/watch?v=Xp_T5ojyZyM

You asked...

And when I first got the plugs. I asked for Motorcraft, they had 2. I asked for Autolites (3 different kinds) they didn't have enough. So I pretty much settled for the Bosch.
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Old 12-05-2009, 04:04 PM
  #16  
Shaunmac9128
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My aunt got my bosch's for christmas and I appreciated that she was taking an interest in what I'm interested but I traded them back in at autozone for store credit lol. And as always, nice exhaust those thrush's sound great.
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Old 12-05-2009, 04:05 PM
  #17  
Synyster06Gates
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I wish I had a good video from when the plugs were bad.

Imagine that sound, with a mild-ish cam. It sounded really nice, just ran like **** haha
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Old 12-05-2009, 08:06 PM
  #18  
JKs95stang
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Originally Posted by Synyster06Gates
And keep in mind, the plugs are less than 3 weeks old. I planned on replacing them anyway because they are Bosch. There were no Motocraft plugs around when I needed them.

Plugs look like this...




EDIT:

Misfire on cylinders 1 and 3, I bought Motorcraft plugs and will be putting them on when the car cools down. If I can find the receipt, Autozone said they would refund my money for the Bosch plugs.
DAYUM, the electrode is GONE, Bosch FTL.
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Old 12-06-2009, 05:35 AM
  #19  
NeoTokyo
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Ahh that sounds so much better, well as good as it can sound on my end.
No pulsing at all either.

Glad that it was a simple fix.
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Old 12-07-2009, 10:35 AM
  #20  
TurtleSLow
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i absolutely hate bosch.. lmao. wont even buy their O2 sensors
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