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  • 2005 - 2014 S-197 Mustang -General/Talk-
  • 2005 - 2009 Specific Tech

2007 Crappy 2 Piece Spark Plugs

  • Thread starter Thread starter MaxDestruction
  • Start date Start date Oct 27, 2010
M

MaxDestruction

Member
Dec 25, 2007
62
0
7
Oct 27, 2010
#1
  • Oct 27, 2010
  • #1
I know this was talked about in the past, but, it seems some of the posts regarding are quite old, therefore, I want to see input for updates. My GT is 2008, but early with the AA code and 2 piece spark plugs that are prone to issues upon removing. What is the best replacement plug for this type? I want to replace the plugs with the "one" piece design, just not sure on manufacturer or best brand. Thanks!
 

klaw

Member
Oct 11, 2007
343
0
16
Calgary, Alberta, Canada
Oct 27, 2010
#2
  • Oct 27, 2010
  • #2
Just take them out (following the TSB recommended procedure), put a little anti-sieze on the barrel and put them back in. I use Brisk but I'm F/I so had to change to colder plugs and close up the gap. I take mine out occasionally to read them and re-apply anti-sieze. No problem at all getting them out.
 

GOLDENPONY

Founding Member
Jan 23, 2002
1,503
0
36
LOVELAND, OHIO
Oct 27, 2010
#3
  • Oct 27, 2010
  • #3
I went with the Champion one piece plugs. Haven't had any issues with them in 40K miles. Very satisfied with them.
 

wveil3v

New Member
Mar 14, 2009
28
0
1
Oct 27, 2010
#4
  • Oct 27, 2010
  • #4
Agreed Champions are fine and perform, just follow TSB to the letter and be patient letting the old plgs soak for 30mins. before breaking loose. I got impatient and wanted to hurry up and broke 1 so I had to buy the extractor tool.
 
R

racerraj

Founding Member
Dec 17, 2001
493
32
39
Dickson, TN
Oct 28, 2010
#5
  • Oct 28, 2010
  • #5
My Champion 7989 plugs worked great when I put them in Gapped at 45. But after about 20,000 miles on them I started getting rough starts and weak very low end power.

So I pulled them out and the two in the front opened up to close to 50. The front middle ones had opened up some too. I closed them all to just under 44 and now it runs great again.

Not sure if I did anything wrong putting them in, but I doubt it. I've done many others with no problem. Doesn't matter, I'd still buy them again. If I have to regap every 20,000 that's ok. But hopefully I did something wrong and won't have to again. Dang though, I install one side then the other, so for only the fronts to open up is strange. Maybe I had better leverage and over tightened them....
 

Rick 91GT

Mustang Master
Nov 29, 1999
9,692
95
99
PA
Nov 13, 2010
#6
  • Nov 13, 2010
  • #6
BRISK gets my vote, a little pricey but worth every penny.
 
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