Ask the Car People.SM


LS not running smooth at constant speed

10 messages,  Last post on Mar 24, 2009 at 6:19 AM

You are in the Lincoln LS Forum.

What is this discussion about? Lincoln LS, Sedan

Messages Page 1 of 1

  • All Messages Displayed

#1 of 10 LS not running smooth at constant speed by logils

Jan 24, 2009 (6:33 am)

I have an 2004 LS with a 3.0L V6 and 89K mi. The car has a skip around 50 mph for the last 50k mi. I have had all the coils and plugs replaced and recently one cat. The car now has a pulsating feel at constant speed. It is most noticable while in cruise control.

#2 of 10 Re: LS not running smooth at constant speed [logils] by toomanyfumes

Jan 24, 2009 (8:42 pm)

Replying to: logils (Jan 24, 2009 6:33 am)
I know if the coils are going bad you'll feel that skip at around 50. Maybe one of the new one's are bad? My '05 V6 does the same thing-only at around 50 MPH.

#3 of 10 Re: LS not running smooth at constant speed [logils] by battleax

Jan 31, 2009 (3:01 pm)

Replying to: logils (Jan 24, 2009 6:33 am)
I've had the same problem with my V6. Dealer changed out first #'s 5 & 6 cylinder coils & plugs in Sept. Then last week cylinders 1,2,3 & 4. It was costly. this BETTER fix the problem.

#4 of 10 Re: LS not running smooth at constant speed [battleax] by toomanyfumes

Jan 31, 2009 (8:46 pm)

Replying to: battleax (Jan 31, 2009 3:01 pm)
I feel it only about once a day, usually on the same spot on the same road.
 
It's just a minor annoyance now, I hope to make it to summer and if it gets worse I'm going to replace all six coils, plugs, and the pcv while I have the manifold off.

#5 of 10 Re: LS not running smooth at constant speed [toomanyfumes] by lsmummy

Mar 23, 2009 (8:44 am)

Replying to: toomanyfumes (Jan 31, 2009 8:46 pm)
Unfortunately guys, I have had everything replaced, and this still happens. The mechanics told me that it is a flaw in the LS engine. I love this car, but it is very high maintenance. Now I am having the overheating problem.

#6 of 10 Re: LS not running smooth at constant speed [lsmummy] by akirby

Mar 23, 2009 (10:34 am)

Replying to: lsmummy (Mar 23, 2009 8:44 am)
I don't know of any "flaws" with the LS engine per se. Some of the components have issues (cops, hydraulic fan) but those can be fixed.

#7 of 10 Re: LS not running smooth at constant speed [akirby] by lsmummy

Mar 23, 2009 (12:49 pm)

Replying to: akirby (Mar 23, 2009 10:34 am)
Yeah, I guess flaw is the wrong word, but the guy I talk to from Lincoln told me that this specific problem with the valve covers leaking is VERY common. Like I said, I have a love/hate relationship with this car. I have done and have had a lot of work done to it.

#8 of 10 Re: LS not running smooth at constant speed [lsmummy] by akirby

Mar 23, 2009 (12:58 pm)

Replying to: lsmummy (Mar 23, 2009 12:49 pm)
Yes, the valve cover gaskets and cops are a known problem. I thought you were talking about some fatal flaw that couldn't be fixed.

#9 of 10 Re: LS not running smooth at constant speed [akirby] by lsmummy

Mar 23, 2009 (1:07 pm)

Replying to: akirby (Mar 23, 2009 12:58 pm)
No, but it feels that way when I had everything replaced and it is happening again. Is there possibly something else causing it again?

#10 of 10 Re: LS not running smooth at constant speed [lsmummy] by akirby

Mar 24, 2009 (6:19 am)

Replying to: lsmummy (Mar 23, 2009 1:07 pm)
If they're leaking again then either they weren't actually repaired the first time or the repair was done incorrectly. The problem was with the original gasket - not the engine itself. Once repaired properly it shouldn't return.

Messages Page 1 of 1

  • All Messages Displayed
To POST a message, please Sign In.

Advertisement

Browse by Category

Browse by Vehicle
   View All Vehicles

Browse by Board
Browse by Topic
View All Topics

Edmunds Community

Advertisement