Hard acceleration cause stutter and puffs black smoke. also have rough idle at times.
Dec 31, 2017 at 2:28 PM
Black smoke
1999 JEEP CHEROKEE
KYLE BAUGH
- MEMBER
- 1 POST
Advertisement
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Good evening
Black smoke could be coming from injectors. If one or more is delivering more fuel than needed, it will run rich.
Have you ever had the injectors cleaned??? Shops offer injector service where they disable the fuel pump and run a solution through the fuel rail that breaks up all the carbon deposits and makes them work much better.
Roy
Black smoke could be coming from injectors. If one or more is delivering more fuel than needed, it will run rich.
Have you ever had the injectors cleaned??? Shops offer injector service where they disable the fuel pump and run a solution through the fuel rail that breaks up all the carbon deposits and makes them work much better.
Roy
Dec 31, 2017 at 3:02 PM
PATENTED_REPAIR_PRO
- ✓ASE Certified Mechanic
- 1,853 POSTS
If you have too much fuel pressure, over 55 psi, maybe due to a kink in the fuel line, then that also could cause the black smoke and running too rich.
Dec 31, 2017 at 3:11 PM
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.