Last post on Jul 15, 2013 at 12:54 PM
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Lincoln LS, Engine, Sedan
#91 of 122 Re: Lincoln LS engine misfires [jbr2]
Jul 24, 2011 (2:22 pm)
My best guess is, since you have no errors showing up, it's not missing any charge at the coils so, likely it's the spark plugs well(s) collecting oil. This is very common, the valve cover gasket set includes 4 round spark plug gaskets which fail in time. As they fail, oil seeps into the spark plug cavity and continues to collect oil until there's just enough to ground out the ignition spark from the coil spring/boot to the spark plug tip.
Many folks just replace all the coils then later find out they performed a completely wasted repair. While you are in the valve galley, I recommend you check out the secondary timing chain tensioner as they are prone to early failure and are basically right there in front of you once you spend the time to get the valve covers off. This is on 3.9 V-8's. If you have a V-6, forget the above as they don't usually have this oil seepage and chain issue.
#92 of 122 Re: Lincoln LS engine misfires [susieq7]
Jul 24, 2011 (2:26 pm)
Talk to the service manager, 95% of the labor to get to coils is removing the valve covers. Once you do, the coils are less than 1 minute to R&R.
#93 of 122 2002 LS
Nov 14, 2011 (6:30 am)
Hello - I have a 2002 LS (V8) These cars are know for electrical problems. I have had the car for five years and I just hit 209,000 miles. Half of my electronics don't work anymore, for example my drivers side heated seat, the controls in my steering wheel, i.e. crusie control, radio volume, etc. I jsut replaced my windshield wiper motor went- that was a real joy to fix. My newest problem is that my heat isn't working very good. When I start my car in the morning to warm up it doesn't blow warm air. It has gotten worse over the past month - actually after I had my windshield wiper motor replaced it got worse. They had to take off my radiator fluid overflow to get to the windshield wiper motor so I wondering if they did something to it. Before it would blow somewhat warm air but now it's cool. When I start to drive it warms up a bit but not much. Before it heated up alot more. I don't know what's up. I think it may be a air pocket somewhere in the line. Anyone have any suggestions how to get the air out? without bringing to a mechanic?? I live in New England and I need heat!!
#94 of 122 Re: Lincoln LS engine misfires [garthman]
Nov 14, 2011 (6:32 am)
Coils - oh yeah I had a bitch of a time with "cylinder misfires" I have replaced 5 of the 8 coils. (at a $100.00 a wack)
#95 of 122 Code 0420 and Clyn
May 23, 2012 (6:25 am)
I have a 2006 Lincoln LS V8 a month ago I changed out all 8 Coils and Spark Plugs with brand new motorcraft coils and plugs. A week later the check engine light came on (And was Blinking), immediatly after, car starting sputtering and stalling something awful. So I take the car to Autozone too get a reading on the system for the check engine light I got Code scan: P0301 Cylinder 1 misfire detected & P0420 Catalyst system efficiency below threshold. My Question is...Can I fix these problems at my owner level or do I have to take it or should I take it to a mechanic for them to fix?? Any help would be appreciated.
#96 of 122 Re: Code 0420 and Clyn [deleonj]
May 29, 2012 (5:42 am)
If it's the coil packs, they should be covered by a Lincoln extended warranty on this particular part. I've had 7 out of my 8 replaced (a couple more than once), all under warranty. In most of the cases, there was misfiring and sometimes the check engine light would come on, but not all. There has been a TSB issued for this issue which is why Lincoln extended the warranty for this issue to 100,000 miles.
#97 of 122 Re: Code 0420 and Clyn [deleonj]
May 29, 2012 (2:46 pm)
A lot of times if you're running with a bad coil the unburned fuel will damage the catalytic converter, that could be the catalyst code. Don't know why you'd still have a misfire, though.
#98 of 122 Missfire, coughing
Sep 09, 2012 (9:59 am)
I need help......i just changed the valve covers gasket and when all was done I fired the car and started right away, the problem is when I give gas almost to the maximum, the car is like it is misfiring or coughing but the "check engine light" did not come-out.
What could be the problem? where should I look to start? what can I do?
#99 of 122 2004 LS Misfires
Oct 17, 2012 (12:23 pm)
I am having a problem with my 2004 LS. When driving it feels like the gas is not flowing properly and it misses. At times I smell gas when that happens. It is worse when you turn a corner and then accelerate. The engine light comes on periodically. I had it serviced when the engine light first came on and they changed the plugs. Now the gas smell has started, it is missing, and the engine light is still coming on. I am seeing a lot of coil issues on the forum, could it be related to that?
#100 of 122 Re: 2004 LS Misfires [rlc11]
Oct 18, 2012 (12:06 pm)
Sounds like it may be the coils