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Old 05-03-2013, 11:03 AM   #11
2nd Gear Member
Join Date: May 2009
Vehicle: 2009 Mustang GT
Location: IL
Posts: 368

No offense, but your descriptions suck. lol. Try to make a YouTube video of the abnormal running condition, whether that's driving or sitting in the driveway (have someone sit shotgun and film if you're driving). That will help give a better idea of where to start looking. Just don't make it with a crappy cell phone.
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2014 Mustang GT w/TrackPack
Borla S-Type axlebacks
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Old 05-03-2013, 03:17 PM   #12
6th Gear Member
Join Date: Feb 2005
Vehicle: '08 S197 GT
Location: AZ
Posts: 9,864

Originally Posted by BrazenStang View Post
What plugs did you use? anything but copper plugs will cause issues. did you use dielectric grease on the cop's? and for future changes I hope you used anti-seize!

why would there be pb blaster in the cylinder? please provide more info

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OEM Plugs are platinum as are most of the aftermarket replacements.

OP, did you clean out the threads and cylinder before putting the new plug in? Sounds like you could've had some broken porcelain in the cylinder. Unless you vacummed out the combustion chamber (Tube and shop vac) that's probably what you heard.
08 S197 GT Auto: FRPP Strut Tower Brace, FRPP Bullitt CAI, Bama 91-P Tune, VBX remaned valve body with Superior Transmission Shift Kit.
Pending upgrades: Shaftmasters Aluminum 3.5" DS, FRPP 3.73 gears, Axle back exahust (?)

Originally Posted by LostBoyz View Post
if you are getting 29mpg in your 5.0, you aren't driving it correctly

Last edited by Derf00; 05-03-2013 at 03:33 PM.
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Old 05-04-2013, 12:46 AM   #13
2nd Gear Member
Join Date: Apr 2011
Vehicle: 2005 ford mustang
Location: Texas
Posts: 242
Collinjonesh@hotmail.com Lighthope90

I've considered the porcelain I did blow out excess but did not have a vacuum to remove other waste. If its porcelain now what?

I apologize for the video it was a short notice and needed se stress relief fast ,

I do not have Any cel for a misfire and I'm not noticing a really large jump like a misfire but only90 percent sure.
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Old 05-04-2013, 12:46 AM
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