2005 Kia Spectra********

2005 KIA SPECTRA
97 MILES • 4 CYL
Avatar
LITTLELADY2011
  • MEMBER
  • 1 POST
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?
Jan 8, 2011 at 4:12 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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.
Feb 3, 2011 at 1:38 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.