1997 Toyota Corolla Black Smoke Exhaust Slightly High Fuel Consumption Could

1997 TOYOTA COROLLA
141,000 MILES
Avatar
JAMESJEMOO
  • MEMBER
  • 16 POSTS
Black smoke from the exhaust and slightly high fuel consumption.What could be the problem?
Nov 28, 2012 at 1:38 PM
Advertisement
Avatar
KHLOW2008
  • CAR REPAIR CONTRIBUTOR
  • 41,814 POSTS
Blac smoke means the engine is running rich and this would definitely increase the fuel consumption.

Is the Malfunction Indicator Light showing?
Is engine misfiring?
There are many possibiities and you should start with basics. A clogged air filter can cause it.

https://www.2carpros.com/articles/engine-black-smoke

Check above link for more information.
Nov 28, 2012 at 1:48 PM
Avatar
JAMESJEMOO
  • MEMBER
  • 16 POSTS
No any malfunction sighn on the dashboard. Misfire occurs slightly if the engine is not started for about two to three days.
Dec 1, 2012 at 2:49 PM
Avatar
KHLOW2008
  • CAR REPAIR CONTRIBUTOR
  • 41,814 POSTS
You need to perform the diagnostics as outlined in the link provided.
Dec 2, 2012 at 10:48 AM
Avatar
JAMESJEMOO
  • MEMBER
  • 16 POSTS
I will thanx.
Dec 2, 2012 at 11:11 AM
Avatar
JAMESJEMOO
  • MEMBER
  • 16 POSTS
I took it for diagnosis, my crib is fine;A'l fill gas then I cruze wildly n safe. Thanx
Dec 12, 2012 at 10:56 AM
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.