missfire

2003 HONDA CRV
120,000 MILES • 2.4L • 4 CYL • AWD • AUTOMATIC
Avatar
GATOR63
  • MEMBER
  • 1 POST
not sure of mileage, but sometimes I get misfire code and at other times no codes I clear it. rough at idle no smoke new plugs. seems to run good going down the road but a idle rough but not always.
Mar 21, 2017 at 2:31 PM
Advertisement
Avatar
CARADIODOC
  • ✓ASE Certified Mechanic
  • 34,321 POSTS
  • ASE Certified Mechanic
How long since the spark plugs were replaced?
Mar 21, 2017 at 3:18 PM
Avatar
STEVE W.
  • ✓ASE Certified Mechanic
  • 15,200 POSTS
  • ASE Certified Mechanic
Clean the IAC valve and the throttle body. Also check for a vacuum leak. Doesn't take much to cause the IAC on that engine to get sticky and cause idle issues.
Mar 21, 2017 at 9:23 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.