Question about 2005 Lincoln Aviator
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Posted on Jan 02, 2017
SOURCE: which ignition coil is bad?
I went thru this on my 2002 LS as well.
I replaced one ignition coil at the dealer - only to get the same misfire code on another cylinder. After a little research found out is actuall a gasket/o-ring problem design of the block. Spark plugs are deep in the block - under the oil - which is why they are supposed to last 100,000 miles. But the o-rings start to leak some where between 65k-85k miles. Coils go bad because of oil contamination. If you don't solve leaking oil problem will have to replace coils again - but sooner - because leaking oil will be progressively worse.
Cost - 8 ignition coils
set of spark plugs (who knew they were that expensive
and a ton of cash for the labor to tear down the top of the motor
Posted on Dec 14, 2008
It could be a fuel injector problem on cylinder 5. Sounds like a failed injector. Run a compression check on that cylinder to make sure you have at least 100psi. Anything less than that would lead to either a burnt valve or a piston ring issue. Doing a compression check first will save you a lot of money.
Posted on Apr 10, 2009
SOURCE: LIncoln Aviator shaking
I had the same problem. Maybe you still have some bad ignition coils. I would change them all out. Very simple to do yourself.
Also, check the hose that is connected to your PCV valve. Mine had a huge hole in it from melting and it was sucking in to much air.
Posted on Oct 21, 2009
Lincoln had a problem with the cylinder coils. I am sure you have fixed yours already, but in the future if you run into the same problem, call your local dealer, they replaced 2 in my 2004 free of charge.
Posted on Dec 23, 2009
Driver side valve cover
7mm socket to remove coil covers and coil
1 thru 4 pass side
5 thru 8 drivers side
Front to back
Posted on Jul 31, 2010
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