. What could be causing this.

1993 CADILLAC ELDORADO
Avatar
CAROLFOR
  • MEMBER
  • 1 POST
Just replaced ERG valve amd cyliniod and fuel injector hose. Now car is hard to start,****** when driving and sitting still like it's going to cut out amd black smoke is coming from the tailpipe.
Nov 11, 2011 at 6:51 PM
Advertisement
Avatar
RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check fuel pressure if its within specs-Black smoke indicates its runningto rich -could be an oxygen sensor, leaky injector, fuel pressure regulator and coolant temperature sensor-
Nov 11, 2011 at 6:57 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.