Last post on Apr 16, 2013 at 7:01 PM
You are in the Lincoln LS
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Lincoln LS, Engine, Sedan
#95 of 111 Code 0420 and Clyn
May 23, 2012 (7:25 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 111 Re: Code 0420 and Clyn [deleonj]
May 29, 2012 (6:42 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 111 Re: Code 0420 and Clyn [deleonj]
May 29, 2012 (3:46 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 111 Missfire, coughing
Sep 09, 2012 (10:59 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 111 2004 LS Misfires
Oct 17, 2012 (1:23 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 111 Re: 2004 LS Misfires [rlc11]
Oct 18, 2012 (1:06 pm)
Sounds like it may be the coils
#101 of 111 2003 Lincoln LS, V6, 112,000 miles - Engine & wrench illuminated
Dec 04, 2012 (11:58 pm)
While driving my car, the engine light and wrench light illuminated and then my car powered down to about 20 to 35 mph. I pulled over and turned off my car, then the wrench disappeared and my car was able to accelerate at higher speeds. My dad checked under my car because I noticed oil leaks on my garage floor. The engine oil filter was just about to fall off because the bolt was very loose. Three weeks ago I had my engine oil changed at the dealership I frequent for oil changes since I bought my car there almost 10 years ago. Could the engine oil have leaked on the valve cover gaskets, coils, and spark plugs that you talk about? My dad noticed engine oil on the alternator and in other places and just wiped the oil off. I called the dealership when my dad noticed the oil filter was very loose ready to fall off. He has an Actron which output the following: P2107 Tac Module Processor, P2110 Tac System Forced Limited RPM, PO356 Ignition Coil F Primary/Secondary Circuit Malfunction, and PO303 Cylinder 3 misfired detected. The Actron indicated that the following were OK: Misfire monitor, fuel system moC Refrig Monitor, Oxygen Sensor, and EGR System Monitor. Also noticed the rubber on the right back wheel well inside the car in front of the gas tank where the gas cap is is like blown off and black soot is on the inside metal along the rubber where the door closes at this wheel well. Did this occur from the misfire? I often would smell something burning. Do you think the problem stemmed from the engine oil leaking out onto whatever else is near the engine? Do you have any suggestions?
#102 of 111 Re: 2003 Lincoln LS, V6, 112,000 miles - Engine & wrench illuminated [angelica6]
Dec 05, 2012 (8:20 am)
The oil filter doesn't have a bolt so not sure what you meant by that.
One incident like that would not be enough to cause coil failures. I would clean it up and make sure no new leaks are occurring and see if you continue to have problems.
The TAC errors listed indicate a problem with the throttle by wire system which may or may not be related to the oil and misfire problems.
#103 of 111 Re: 2003 Lincoln LS, V6, 112,000 miles - Engine & wrench illuminated [akirby]
Feb 25, 2013 (9:44 am)
I have a 2003 Lincoln LS V8. It has 122,000 miles. My engine was misfiring and I have had this problem before (coils) and had the diagnostics run and it showed cylinder #3 coil. I changed that coil and it helped a little but still had misfires. I went ahead and replaced all the spark plugs. It ran really smooth for a day and after that it started to misfire again, worse than ever. Could this issue be fuel injectors? What else could it be?
#104 of 111 2003 LS V8 Misfire Nightmare!
Feb 25, 2013 (12:02 pm)
I have a 2003 Lincoln LS V8. It has 122,000 miles. My engine was misfiring and I have had this problem before (Had two coils replaced at the dealership previously) and had the diagnostics run and it showed cylinder #3 coil. I changed that coil and it helped a little but still had misfires. I went ahead and replaced all the spark plugs. It ran really smooth for a day and after that it started to misfire again, worse than ever. Could this issue be fuel injectors? What else could it be? When I changed the plugs, there wasnt really any oil that I could see...