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P0304 2003 Kia Optima

Tiny
JDKBANKS23
  • MEMBER
  • 2003 KIA OPTIMA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 126,000 MILES
What is cyclinder 4 misfire
Friday, August 19th, 2011 AT 9:27 PM

2 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
This is possibly a faulty spark plug, lead or injector, a low compression can also set this code, the problem is only associated with cyl No 4.
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Tuesday, August 23rd, 2011 AT 8:05 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check sparkplig, compression and injector for no.4
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Tuesday, August 23rd, 2011 AT 8:06 AM

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