SPONSORED LINKS

1991 Cadillac Brougham Engine Runs Rich

Tiny
JGROFF05
  • MEMBER
  • 1991 CADILLAC BROUGHAM
  • V8
  • 2WD
  • AUTOMATIC
  • 191,000 MILES
My car was running rich as i have been having rough ilde problems when I come to a stop after interstate driving. To fix this idle I put the car in park and floor the gas pedal slowly to the floor and this black and greyish smoke comes out the tailpipe. Please let me know what all the things are



http://www.2carpros.com/forum/automotive_pictures/333322_1991_cadillac_brougham_1633300x189_1.jpg

that could cause it to run rich.
SPONSORED LINKS
Monday, February 22nd, 2010 AT 1:48 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi jgroff05, Welcome to 2carpros and TY for the donation.

Probable causes of an engine running rich are as follows:

1. Fuel pressure not within specs. Can be cause by restricted fuel return line or defective fuel pressure regulator.
2. Defective Oxygen Sensors.
3. Leaking injectors.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, February 22nd, 2010 AT 5:27 PM

Please login or register to post a reply.

Related Engine Rich Content

Is it Safe to Drive Check Engine Light?
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
Check Engine Light
GUIDE
Check Engine Light
Why is my check engine or service engine soon turned on? In this guide we talk about what this is associated with this notorious light, what it is used for and what you...
VIEW MORE

Sponsored links