2005 Kia Spectra



January, 8, 2011 AT 4:12 PM

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?

1 Answer



February, 3, 2011 AT 1:38 PM

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.

Please login or register to post a reply.

Instrument Cluster Replacement GMC Yukon
Coolant Temperature Sender Replacement