2005 KIA SPECTRA********

  • Tiny
  • 2005 KIA SPECTRA
  • 4 CYL
  • 97 MILES

After engine has completely warmed up (15-20 min of driving)the car****** very roughly at the 22mph mark. The RPM gauge also revs at the same time. This will only happen if I am accelerating. For example, if I take my foot off the gas and let the car coast over the 22 mph mark, it will not*****. A free computer scan gave a code of P0304 cyl 4 misfire. Any ideas?

Do you
have the same problem?
Saturday, January 8th, 2011 AT 4:12 PM

1 Reply

  • Tiny
  • Jacobandnickolas
  • 68,402 POSTS

Since you know the #4 cylinder is missing, I would start there. Change the plug and wire. If that doesn't fix the problem, have compression checked on that cylinder. Also, make sure the injector is working all the time.

Was this
Thursday, February 3rd, 2011 AT 1:38 PM

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