1995 Cadillac SLS

Tiny
ALPHONSO MOBLEY
  • MEMBER
  • 1995 CADILLAC SLS
  • V8
  • 2WD
  • AUTOMATIC
  • 132,367 MILES
Why when I start my car it runs rough but idles good after I let it run for a momment?
Tuesday, March 9th, 2010 AT 6:40 AM

1 Reply

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
Could either be excess fuel in the intake system due to a leaking fuel pressure regulator, or coolant in the cylinders that accumulates after it cools due to internal leak. Pull the vacuum line to the regulator and check for presence of raw fuel. Monitor it for gradual coolant loss, it doesn't take much to cause a slight misfire, since it don't burn.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, March 9th, 2010 AT 10:53 AM

Please login or register to post a reply.

Related Engine Runs Rough 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