SPONSORED LINKS

1998 Ford Taurus Intermittent Rough Idle and Backfire

Tiny
ALFREDM56
  • MEMBER
  • 1998 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 11,300 MILES
When cold, the engine on my 1998 Ford Taurus idles rough and intermittently mis-fires and/or backfires. The problem gradually disappears as the engine warms up. The readings on the OBDII Scanner shows no error codes. Where do I begin?
Wednesday, September 15th, 2010 AT 8:41 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
When cold, does the exhaust smell like the engine is running rich? Have you checked the EGR? Have you checked fuel pump pressure (when it is cold)?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, September 15th, 2010 AT 9:07 PM
Tiny
ALFREDM56
  • MEMBER
  • 2 POSTS
The problem got worse and, finally the Check Engine light came on. Checking the OBDII code, I found that the #3 cylinder was misfiring. I immediately changed the plugs and found a defective one at the #3 cylinder! The rough idle is now history, as well as the backfiring. I plan to inspect the EGR valve to address a mild hesitation problem that exists. Thanks for your help!
Was this
answer
helpful?
Yes
No
Saturday, September 18th, 2010 AT 6:48 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Finally, the computer did its job. It makes things much easier. I'm glad you found it.

Let us know if you have questions in the future, and thanks for using 2carpros. Com.

Joe
Was this
answer
helpful?
Yes
No
Sunday, September 19th, 2010 AT 12:38 PM

Please login or register to post a reply.

Related Engine Idle Rough Content

Rough Engine Idle
GUIDE
Rough Engine Idle
A rough engine idle condition is a common issue that many drivers face often indicating underlying problems within the engine, fuel or ignition system. We have created this...
VIEW MORE

Sponsored links