Last post on Apr 29, 2012 at 4:30 PM
You are in the Lincoln LS
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Lincoln LS, Sedan
Aug 31, 2009 (5:15 pm)
Had a rough idle, misfire episode on my 2004 LS last week (88K miles). Check engine light went on and I limped back home then took it to a dealer. They said it was #3 coil problem and it was going to be $300. Fortunately, I had my letter from Lincoln and claimed the coil was covered under a program. The regular service guy said no but I appealed to the Service Mgr. He re-read the service notice and then agreed with me. I picked up the car and didn't really drive it until Saturday. My son said it was running a little rough but no engine light. On Saturday night I was on a major highway under construction and accelerated to pass someone. The engine shut down and gave me the ETC Engine Fail Safe Mode notice was given. I coasted for about 30 second with the flashers on and traffic quickly approaching my backside. I put the car in neutral, turn the key towards off then re-started the engine. I put it in gear and it took off. The construction zone only had concrete barriers with no place to turn off so fortunately this process worked. It dropped again when I attempted to accelerate hard again on a side road on my way home. ETC Engine Fail Safe mode light again.
I found this thread on Sunday. I ran it up to AutoZone to have them check the codes. They found a P2104 and P2112 code.
I took it to the dealer on Monday and they replaced the #5 coil, this time they already knew it was covered under the program. I spoke with the service manager and talked about this may be a challenging problem based on my research. He recognized that once one coil goes it might there is a tendency for more of them to go but he could not replace them all and get it covered. At least they didn't say it was the throttle problem (which isn't covered under a program).
I guess now I have to wait and see what else goes wrong and how long in between. I ask what codes the dealer found but they never have them available when I pickup the car. I'll keep checking this thread and post any updates...
#14 of 29 Lincoln LS Misfire
Sep 11, 2009 (1:27 pm)
I bought a Lincoln LS 2002. It had 60,000 miles on it. I drove it about 1000 miles and it started to misfire at idle. I kept driving it for a while and the misfire got worse. It got so bad that the car didn't want to shift, it kept hesitating instead of shifting into high gear. It wasn't fun to drive anymore and I decided to get it fixed. The dealer wanted an outrageous amount of money to do this. I met a guy who was a laid off certified FORD mechanic. He had worked on the Lincoln LS alot and said they had cronic coil problems. I hired him to fix my car. He had a code reader and said #4 and #6 had a problem. We took the coil covers off and pulled the coils and spark plugs. Many of them were drenched with oil. The plugs sit way down in a hole in the middle of the valve covers. Those holes were filled with oil ...........ah we have come to the problem.......a faulty seal between the valve cover and the cylinder head. Turns out the valve covers are made out of plastic (composite). Gee do ya think maybe that has something to do with why they failed. There is an O ring like seal around each spark hole but the plastic valve cover does not exert enough pressure around the plugs to make a dependable seal. Lincoln needs to make a metal valve cover replacement. I don't trust this car on a long trip!!! By the way the valve cover gaskets can only be bought at the dealer $60.00 each - thats $120.00 - WHAT A RIP-OFF. The dealer wants $80.00 each for the coils but you can buy them for $50.00 at the auto parts store. I hate to say this but I might be buying a Honda or Toyota next! PLACTIC VALVE COVERS ON A $40,000.00 CAR!#$%&(*)
#16 of 29 Re: Lincoln LS Misfire [pipsqueek]
Sep 12, 2009 (4:19 am)
The problem was the gasket, not the valve covers. Once repaired they don't leak again (if the new gasket is used).
#17 of 29 Re: Lincoln LS Misfire [akirby]
Sep 12, 2009 (11:51 am)
Well the new gaskets are installed - will see how long they last. I still don't trust plastic (composite) valve covers. Alot of manufacturers use cast aluminum valve covers or at least metal, especially when the spark plug is in the middle of the cover. By the way my LS is a 2000 V8 3.9 liter. Do you own a LS or just work on them?
#18 of 29 Re: Lincoln LS Misfire [pipsqueek]
Sep 12, 2009 (8:23 pm)
I bought one in October 99 and kept it 6 years. I also belong to a club of LS owners.
#19 of 29 Re: Starting the Process [2004lincolnls]
Oct 08, 2009 (7:22 am)
What is this letter that you got from Lincoln? My 2004 LS just had to have a coil replaced and now it looks like maybe I shouldn't have had to pay for it. Please let me know because we are now starting to experience more problems with it.
#20 of 29 Re: Starting the Process [plogman]
Oct 08, 2009 (6:44 pm)
Your coils are getting soaked with oil because they are located in the center of the plastic valve cover. This plastic (composite) valve cover has o-ring type seals around each spark plug hole - this hole fills with oil because the plastic heats up and does not exert enough pressure to maintain the proper seal !! FORD HAS A BETTER IDEA. I think that was their slogan - what a joke. There needs to be a cast aluminum valve cover like the Japan made cars. I like the car but I can't trust it on long trips because of this engineering flaw !!!!!!!!!
#21 of 29 Re: Starting the Process [pipsqueek]
Oct 09, 2009 (6:17 am)
The problem is the gasket, not the valve covers. Replacing with a new gasket fixes the problem permanently. Has nothing to do with the valve covers themselves.
#22 of 29 Re: Starting the Process [akirby]
Oct 10, 2009 (4:36 am)
On the 2004 there might not be a valve cover gasket leak. I think by then they used a different gasket that lasts longer. Sometime the coils will just fail.