1989 Toyota Corolla

Tiny
NKEARNS
  • MEMBER
  • 1989 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 176,000 MILES
This car was running great. Now, all of the sudden, it's missing in lower gear and blowing a lot of black smoke. How do I fix it?
Sunday, January 9th, 2011 AT 4:35 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Probable causes of an engine running rich are as follows:

1. Excessive fuel pressure can be cause by restricted fuel return line
2. Defective Oxygen Sensors.
3. Leaking injectors and fuel pressure regulator.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, March 15th, 2011 AT 12:51 AM

Please login or register to post a reply.

Related Black Smoke Content

Black Smoke
GUIDE
Black Smoke
Black smoke being produced from the exhaust system of is a sign of too much fuel being processed by the engine.
VIEW MORE

Sponsored links