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Misfire Question...

  • Thread starter Thread starter Blown Pony
  • Start date Start date Feb 2, 2014
B

Blown Pony

New Member
Nov 26, 2006
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0
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NC
Feb 2, 2014
#1
  • Feb 2, 2014
  • #1
I've been having a steady misfire on my car for about a month. (Some days worse then others) I couldn't get it to ever throw a code so just left it alone waiting for it to throw a code.

Today the check engine light finally came on and my OBD tells me its cylinder 3. I went ahead and changed the coil and plug for that cylinder, reset the codes, and test drove it.
It's still misfiring on #3...

The injector sounds like it's working ( Used a metal rod to hear it knocking), but that's the only way I know to check it. If it's ticking, should I assume its working properly?

What else would cause only one cylinder to misfire? Ideas?

It's a bolt on 2001 GT BTW...
 

trombonedemon

Well-Known Member
Jun 25, 2009
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U.S.A, U.S.A., U.S.A.!
Feb 3, 2014
#2
  • Feb 3, 2014
  • #2
Compression check will tell you if it's mechanical such as valves sticking.
 
K

Kilgore Trout

Fried or Broiled ?
10 Year Member
Mar 30, 2005
4,749
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Feb 12, 2014
#3
  • Feb 12, 2014
  • #3
cop boot could be torn and allowing a short or mice could have chewed wires
 
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