2000 Chevy Malibu

2000 CHEVROLET MALIBU
21,031 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
DOWN2247
  • MEMBER
  • 1 POST
The vehicle is running real rough after the spark plugs, coils, & mass air flow sensor was replaced. The fuel pressure is fine........what could be the issue? There were no CAT codes, just missfire codes that are taken care of now. the vehicle would not start & had the missfire codes initially. It just runs real rough now, not to the point of dying, but rough.
Jun 14, 2010 at 6:43 AM
Advertisement
Avatar
HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
misfire codes can be also from fuel injector problems or fuel problems. a plugged fule filter will also cause the same thing. The onely thing you can do is find a mechanic to see if he can put professional fuel injector cleaner in your engine and see if that cures it. Most of the over the counter stuff doesn't really help your problem. You could have injectors that'aren't working or getting power to them.
Jun 15, 2010 at 10:29 AM
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.