The car is in park at idle run's fine give it.

Tiny
JOLIFAEM
  • 2001 MERCURY MARQUIS
  • 99,000 MILES

The car is in park at idle run's fine give it some gas and it run's rough give it a bit more gas and it smooth's out like a dead spot in the throttle same when driving

Do you
have the same problem?
Yes
No
Saturday, December 8th, 2012 AT 1:01 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,399 POSTS

Check for vacuum leaks and check for tune up

Was this
answer
helpful?
Yes
No
Saturday, December 8th, 2012 AT 1:50 AM
Tiny
KANDRZIN
  • MEMBER

Same thing is happening to my 1995 Grand Marquis with 242.000 and I just had a tune-up. I will look for vacuum leaks and in fact considered this as a problem. Might it also be a problem with a blocked air intake or a blocked fuel injector?

Was this
answer
helpful?
Yes
No
Monday, December 31st, 2012 AT 5:34 PM
Tiny
KANDRZIN
  • MEMBER

Actually, the roughness happens at idle and smooths out with higher revs, which is a little different from JoLiFaEm's problem.

Was this
answer
helpful?
Yes
No
Monday, December 31st, 2012 AT 5:35 PM

Please login or register to post a reply.

Other Engine Runs Rough Questions