Last post on Mar 11, 2013 at 1:58 PM
You are in the Lincoln LS
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Lincoln LS, Sedan
#15451 of 15500 Re: Time for 'tuneup' and the 'other' site [heydudes]
May 29, 2011 (9:43 am)
I've been there and done that. You're on the right track, just make sure you replace ALL coils. Great decision on replacing the gaskets as well, because the allow oil to leak on coils as they become worn. At 135,000 miles, you're lucky to be just having a slight miss. Your coils, plugs, and gaskets are all over due at the mileage so be sure to replace all. I have a 2000 Lincoln Ls with 175,000 miles going strong.
#15452 of 15500 Re: Time for 'tuneup' and the 'other' site [totaljett]
May 29, 2011 (11:09 am)
Coils rarely "wear out". It's not a common wear item however, folks think so on the Lincolns and Jaguar engines. There is a root cause to "premature" coil on plug failure and that is the valve cover gaskets. Problem is with the "4 valve cover gaskets" that fit around the spark plug ports. They begin to seep oil into the spark plug well and with time, enough oil seeps in there and spark from the coil boot shorts its way to the easy path which is the oil build up. The coil doesn't fail in this regard, the spark is diverted to something else which causes failure of the spark plug to ignite thus, there's a miss-fire.
When these engines misfire, 99% of the time it is the spark plug well gasket which is round and a gasket all of it's own for each spark plug port so there's a total of 8 of them plus the actual valve cover gaskets. You have to order the "gasket set" to get the spark plug gaskets. Also, once you are doing this, it's a good practice to replace the spark plug/coil boot or at least clean them, they are silicone based so they will clean easy.
Another item to consider on the V-8 at this time is, once you have the valve covers off for the above job, be sure to check the secondary timing chain and sliders. The sliders are nylon plastic and will prematurely fail which causes too much chain slack and/or pieces of the slider or tensioner gets wedged between the chain and sprocket which can cause a slipped sprocket issue and cause the valves to hit the pistons.
The primary timing chains and tensioners on the front of the engine are also prone to this same premature wear however, they are located on the front of the engine block and are a completely different process to change. Valve covers are not easy to remove, especially the drivers side and the front timing chain job requires major disassembly of the front components to access them.
Hard to believe this crap is still ongoing with late model engines. It makes you think the engineers almost design these flaws to occur to keep all the mechanics and dealerships employed.
#15453 of 15500 Re: Time for 'tuneup' and the 'other' site [garthman]
May 31, 2011 (3:35 pm)
I don't know, garth, alot of guys with Newer LS's are having coil failures also. These later models don't have the leaky valve covers but still the coils fail even though there's no oil leaking. My '05 had this problem, I replaced three coils, no oil leaking. Ford is even replacing coils on some 05's under a extended warranty, V8's only, of course I have a V6.
If you're taking off the manifold to replace plugs, I'd at least change the four coils that are buried under there so you don't have to remove it again.
#15454 of 15500 Re: Time for 'tuneup' and the 'other' site [garthman]
Jun 01, 2011 (12:27 pm)
To Garth, toomany and jett: Thanks for responses.
One clarification - I don't have the V8, I have the V6 with manual tranny I will assume all or most of what was said applies to the V6, except maybe the info about the timing chain? I've not serviced that at all, knock wud.
So it sounds like I'm on the right track? I have not been able to determine if there's any oil leaking around the plugs. Will know soon enuf. I do plan to replace the plugs with motorcraft (already purchased); the valve cover gaskets with Felpro (local quote for gasket set is $52.25) and of course the plenum or manifold or whatever gaskets (local quote for set is $50.82). Do these sound like reasonable numbers? I want to try to avoid having to leave the job in the middle and drive 30 mins to parts store for stuff that I still need and find that they need a few days to get em. (OK, I'll call first!)
Am also going to replace the PCV valve and I guess I should bite the bullet and replace the 3 coils that are inaccessible unless I remove the plenums or manifolds or whatever. (Wish I had a service manual.) Coils are $53.81 locally. All these parts are supposed to be NAPA brands and not 'Chinese' brands. Oh, also will clean or replace the coil boots.
Thanks and post more info if I'm off track.
#15455 of 15500 Re: Time for 'tuneup' and the 'other' site [heydudes]
Jun 01, 2011 (3:14 pm)
Don't know about gasket prices but price for coils sounds good. Timing chain is an issue on V8's as far as I know. Otherwise sounds like you're doing what you need to do. Good Luck!!
#15456 of 15500 Re: Time for 'tuneup' and the 'other' site [heydudes]
Jun 02, 2011 (9:19 am)
Glad I could help and yes I have the V6 with automatic and manual transmission. Smart move replacing the PCV valve, I experienced stalling years back when mine was worn. You're also wise to go on ahead and change those coils under the plenum. I hate that they are under there because it requires more work if you're doing it yourself or more money if paying for the service. A simple tuneup becomes more ching ching because of not easy accessible location. If you start experiencing the fail window regulators ( all four of mine have been replaced), go to Ebay. They go for about $45-$60 on there. A far cry from the 2.5 million at the dealership, lol.
#15457 of 15500 Should I buy A Lincoln LS?
Jun 08, 2011 (4:18 pm)
I've always wanted a lincoln towncar ever since middle school, in fact owning MY OWN lincoln towncar was #4 on my "things to accomplish before I turn 30" list witch IS ONLY A FEW DAYS AWAY!
But when I saw the Lincoln LS I FELL IN LOVE and now I REALLY want one!
anyway I need a new engine in the P.O.S I have now and have decided to use the $1200 cash I have saved for that as a Down payment instead. SO
I have been car shopping since February & have found a Black (the color I WANT!) 02 LS with 100522 miles on it for $9000.00(witch is kind of alot of $MONEY$ 2 me cuz I aint RICH)
BUT I need a GOOD, Reliable car and I am willing to forgo MY WANTS for MY NEEDS, and I really dont want to just take the "sales guys" WORD for it, and I've read some really GOOD reviews and some NOT SO GOOD reviews but they all gave the car 4 out of 5 to, 5 out of 5 marks witch is kinda of confusing, so any first hand/hands on INFO on this issue would be MUCH APPRECIATED!
#15458 of 15500 Re: Should I buy A Lincoln LS? [nathan29]
Jun 08, 2011 (5:35 pm)
That price sounds hight for an '02 with 100K, you should be paying several thousand less. The LS is basically a good car, other than issues with the coil on plugs, DCCV, and window regulators. It might not be as reliable as a Camry or such, but you'll have something more unique.
#15460 of 15500 humming sound
Jun 10, 2011 (1:43 pm)
i have a 2000 lincoln ls with 86,000 mi. when i'm driving the car makes a humming sound, the higher i accelerate the louder the sound. i thought there maybe a leak in my exhaust somewhere, but that's not the case. does this sound like a transmission problem?