Lincoln LS Engine light

In June the check engine came on and began to blink as well. Took it to the dealership in July and following came back #2, #6 coils failed, Cat #1, Cat #2 banked. Dealership wanted $3400 estimated. I asked if under warranty, no luck 76200 at time. However I just made some research that my cats may be covered under the Federal Emissions Warranty act as long as my car is under 80,000. Now, if I do the coils myself, and go to a different dealer or same dealer (considering they straight out lied to me, since they are salesmen anyways); can the cats be covered due to failure of 2 coils going back, since I didn't cause the coils to fail due to mistreatment.

P.S. I do take my car for routine oil changes (high milage), change my air filter every 6 to 8 months depending how dirty and check all fluids. Also heard coils fail a lot in LS due to gaskets failures since water or oil seeps in and shorts the coil (manufacturing problem).

Replies to this message:

akirby (Aug 27, 2009 5:29 am)
- pricanpride84 (Nov 28, 2009 4:21 pm)

#16 of 22 Re: Plugs/Cat Conv. [pricanpride84] by akirby

Aug 27, 2009 (5:29 am)

Replying to: pricanpride84 (Aug 26, 2009 5:22 pm)

You continued to drive the vehicle with a blinking CEL. The manual specifically says not to drive with a blinking CEL because you may damage something (namely the catalytic converters). That's why it blinks. I think you're SOL.

That said, $3400 sounds awfully high. How much are the cats?

Replies to this message:

pricanpride84 (Nov 28, 2009 4:21 pm)

#17 of 22 Valve Guide Seals Leaking by iampattic

Sep 23, 2009 (8:49 am)

I have a 2004 Lincoln LS 6 cyl with 32,000 miles on it.
My engine light came on. I had codes read. PO304 is the code. Mechanic said that the "Valve Guide Seals are Leaking" and there is oil on the pistons. He isn't sure if he needs to remove the heads to repair this. Estimate is $1200.00. I need some help from someone! Would this be under any kind of warranty?

Replies to this message:

akirby (Sep 23, 2009 9:07 am)
- iampattic (Sep 23, 2009 11:43 am)
  - akirby (Sep 23, 2009 12:57 pm)

#18 of 22 Re: Valve Guide Seals Leaking [iampattic] by akirby

Sep 23, 2009 (9:07 am)

Replying to: iampattic (Sep 23, 2009 8:49 am)

That's a misfire. It's usually caused by a COP failure. A valve guide seal problem would only affect air and fuel entering the engine. It would not cause oil to leak - that would be an oil ring problem with the piston or cylinder wall problem. I'd get a second opinion.

Replies to this message:

iampattic (Sep 23, 2009 11:43 am)
- akirby (Sep 23, 2009 12:57 pm)

#19 of 22 Re: Valve Guide Seals Leaking [akirby] by iampattic

Sep 23, 2009 (11:43 am)

Replying to: akirby (Sep 23, 2009 9:07 am)

The mechanic told me that this is the final cost.
6 hrs labor - 270
gasket sets (from Ford) - 220
Transmission - 50
Spark Plugs - 60
PCV - 8
Fuel Filter - 20
10 qts trans fluid - 42
oil change with Mobil 1 - 40
Total - 710

I told him to go ahead because I don't know what else to do.
Thanks for your reply

Replies to this message:

akirby (Sep 23, 2009 12:57 pm)

#20 of 22 Re: Valve Guide Seals Leaking [iampattic] by akirby

Sep 23, 2009 (12:57 pm)

Replying to: iampattic (Sep 23, 2009 11:43 am)

He must have meant Valve Cover Gasket leak - huge difference. The valve cover gasket is leaking oil into the spark plug wells - common problem. The problem is the misfire is caused by a bad COP (which is caused by the oil leak). So you'll need to replace at least one COP if not several to fix the problem.

#21 of 22 Re: Plugs/Cat Conv. [akirby] by pricanpride84

Nov 28, 2009 (4:21 pm)

Replying to: akirby (Aug 27, 2009 5:29 am)

Well the plugs, gaskets, and boots were all replaced in August. No problems as far as misfires on dry or wet conditions. As far as the light goes, it is still on. The catalytic converters were not amber red (plugged), I have checked them multiple times while idling and driving to work 8 miles away. Exhaust is coming out without obstruction.

But light is solid on (light went out after COP's replaced and came back 7 days later). I will try to replace 02 sensors before I spend $$ on converters. If I do have to replace them Autozone sells universal cats only but I was wondering if V8 2005 LS direct fit cat assembly fit an V6 2005 LS. Seems to be the only one that is sold online, no V6 direct assemblies on any website of any kind.

#22 of 22 Plugs/Cat Conv. by pricanpride84

Dec 05, 2009 (6:12 pm)

According to Autozone the Cat's only are 250 each, now I heard that you "can't" cut off the cats off the LS due to them being direct fit, but why would Autozone sell the universal cat's? I figure that they can be cut, its a matter of who has the time/patience to get under there and start hacking, I'm willing to pay for labor. But also, while searching the net, there are no 05 LS V6 direct fit cats, 95% sites show 3.8L V8 direct fit and universal much cheaper for cheap. Do they fit the V6 version?

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