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Do these plugs look bad??

  • Thread starter Thread starter 155dB5.0
  • Start date Start date Jun 26, 2011

155dB5.0

Member
Jul 2, 2003
165
7
18
Upper MI
Jun 26, 2011
#1
  • Jun 26, 2011
  • #1
Tossed some new plugs in today, the old ones look realy wet. Im know expert so tell me what you think of them? Car seems to be running rich, FP is set at about 39 psi with vacume off, any ideas?
 

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155dB5.0

Member
Jul 2, 2003
165
7
18
Upper MI
Jun 26, 2011
#2
  • Jun 26, 2011
  • #2
Anyone?
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,368
18,115
224
Massachusetts
Jun 26, 2011
#3
  • Jun 26, 2011
  • #3
A couple of them look like they have significant deposits of carbon forming. How does the car run? Might be worthwhile to run the codes and do a cylinder balance test to see if all cylinders are firing equally. Might have a weak cylinder or two.
 

155dB5.0

Member
Jul 2, 2003
165
7
18
Upper MI
Jun 26, 2011
#4
  • Jun 26, 2011
  • #4
Only codes I got were 33 and 66, it seems to run ok, some idle surge but it docent seems like it pulls as hard as it used to. Tailpipes are also full of black soot.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,368
18,115
224
Massachusetts
Jun 27, 2011
#5
  • Jun 27, 2011
  • #5
Well, code 66 is a big deal. You might want to fix that.

http://www.stangnet.com/mustang-forums/788801-no-cel-but-getting-code-66-a.html
 

155dB5.0

Member
Jul 2, 2003
165
7
18
Upper MI
Jun 27, 2011
#6
  • Jun 27, 2011
  • #6
Well i did clean the MAF and i havent cleared the computer yet, maybe i need to do that frist and then see if it pops up again. Im hoping the MAF is not bad cause its not that old, pro-m 75mm for 24# injectors.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,368
18,115
224
Massachusetts
Jun 27, 2011
#7
  • Jun 27, 2011
  • #7
Well, either way, youhave some deposits on some of those plugs. Might have some leaky valve seals or burning oil through other means on a few cylinders.
 

155dB5.0

Member
Jul 2, 2003
165
7
18
Upper MI
Jun 27, 2011
#8
  • Jun 27, 2011
  • #8
Yea i agree with the buring oil, it never burned oil untill i put new heads on, i got them used, so i thinking it is the valve seals to.
 
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