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Lincoln LS 3.9 engine problem

49 messages,  Last post on Nov 11, 2009 at 11:49 AM

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#13 of 49 Re: Similar problem [jeyhoe] by akirby Jan 14, 2008 (9:44 am)
Replying to: jeyhoe (Jan 14, 2008 8:43 am) Yes, the cops are totally separate from the spark plugs. They just sit on top. I think they're $45-$65 depending on where you get them. Replies to this message: jeyhoe (Jan 14, 2008 12:31 pm)
#14 of 49 Re: Similar problem [akirby] by jeyhoe Jan 14, 2008 (12:31 pm)
Replying to: akirby (Jan 14, 2008 9:44 am) OK Thanks.   Yeah, I just saw where gregg replaced his plugs with platinums. It's good I can doa tuneup for only the cost of the plugs. And I'm sure the aggravation of actually getting to one or more of them.
#15 of 49 Licoln LS 3.9 Engine Problem by jhaberberger Jan 15, 2008 (4:19 pm)
Thanks for all the help guys. Something else occurred to me, do many other engines have covers over their coils as the LS does? Could excess heat be cooking these things? Just a thought. Replies to this message: brucelinc (Jan 16, 2008 5:52 am)
#16 of 49 Re: Licoln LS 3.9 Engine Problem [jhaberberger] by brucelinc Jan 16, 2008 (5:52 am)
Replying to: jhaberberger (Jan 15, 2008 4:19 pm) That thought has occurred to me, as well. Many other engines do not have the covers over the coils. I don't know if that is the whole reason for coil failure or not, though. There were some problems with valve cover sealing around the spark plug wells and when they fill with oil, the coils fail. Mine were dry as a bone but coils still failed - although it took 100,000 miles for them to do so.   My '94 T'bird with the 4.6 had spark plug wire failures. It was not COP but the wires went deep into the head to reach the plugs and had a seal on top of the well. I always thought heat was a problem for that application, too.
#17 of 49 Re: 3.9V8 engine miss [jhaberberger] by lrjr Jan 29, 2008 (8:25 am)
Replying to: jhaberberger (Jan 12, 2008 7:32 am) Hi: Just read your post. My wifes' Lincoln LS is doing the same exact things too. I haven't taken it in to the mechanic yet, but have got to do so soon. It isn't missing, it just pings quite loud when going up an incline of almost any angle to speak of. It idles great. Another mechanic said due to its mileage of 78,000 it might need to be de-carbonized. I thought I would check in to that. Will let you know what happens. Please keep me in the loop too if you dont mind. Regards, Larry
#18 of 49 That makes 6 coils replaced. by jhaberberger Mar 17, 2008 (6:24 pm)
I finally broke down and let the dealer replace the valve cover on the left side. I replaced the right one myself about 2 years ago. I actually tried the left myself but ended up shedding too much blood trying to get to all the bolts. Anyway, they replaced the gasket and yet another coil and now it seems to run fine. I'll keep you all posted.
#19 of 49 rough idle by boolove2 Dec 18, 2008 (4:55 am)
could someone please help me, I have a 2000 lincoln ls, v6, have been driving fine, all of a sudden I start to drive and the car starts to skip, it didnt shut off and continues to drive but it really sounds rough, I'm afraid to drive it , so i can get it checked Replies to this message: akirby (Dec 18, 2008 8:10 am)
#20 of 49 Re: rough idle [boolove2] by akirby Dec 18, 2008 (8:10 am)
Replying to: boolove2 (Dec 18, 2008 4:55 am) In this order - PCV valve, COPS, fuel pump/filter.
#21 of 49 3.9 lincoln by Bosephis Dec 20, 2008 (3:33 pm)
sounds like a bunch of bs the dealer is feeding you i have one with 227 k on it and it seems to run fine.i will say this i have found tat running marvel mystery oil in any car does seem to help the the internal parts i put it in mine and in the gas as well.had couple of other cars was ticking and i dumped that in there and it killed the ticking problem.
#22 of 49 Rattling Engine by 2005LS Dec 22, 2008 (6:07 pm)
I have a 2005 Lincoln LS with about 34,000 miles. The car has been to the dealership about 3 times for this problem. I believe something is wrong. The dealership keeps telling all engine tests pass. The problem can be heard when accelerating and going up a hill. I am afraid that I might be damaging the engine. The engine sound can not be normal. Please advise.

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