I just got quoted $1,200 for 6 coils & plugs on the 2005 Escape. Ugh.
newer model cars do not carry spark plug wires they carry ignition coils the plugs will be at the bottom of each one of the six coils you need to remove the coils indvidualy.
On a 2005 Lincoln LS , 3.0 litre V6 engine : ( there are 6 separate ignition coils with the Coil On Plug ignition system )
On a 2005 Lincoln LS : Both size of engines have the Coil On Plug ( C.O.P. ) ignition system The 3.0 liter V6 engine has ( 6 coils ) The 3.9 liter V8 engine has ( 8 coils )
you must remove the long ignition coil pack that's located on top of the engine. This houses the ignition coils and the spark plug boots as well. There's no plug wires, just direct snap on boots. Plugs are in four little recessed wells underneath it.
There are access covers (2 of them, one for the left side, on for the right) over the ignition coils. The plugs are under each coil. Be sure to blow and/or wipe dirt, oil or debris from the spark plug wells out BEFORE removing the plugs, or you'll dump that crap straight into the cylinders.
In our 2004 MPV, we got strange engine skipping that we thought was related to driving in the rain (water intrusion into ignition system), but turns out the spark plug coils went bad. It may have only been a couple of them, but they couldn't tell exactly which ones were bad, or at least that's what the dealer said. Given a possible systemic problem, we had them all replaced. No similar problems since. This all happened at around 110K miles. When we had the coils replaced, they did the plugs at the same time. It was a essentially a more expensive tune up.
The first three spark plugs (bank1) are simple, unplug then remove the ignition coils, and the spark plugs from there should be easily accessible. Now the harder part. The complete upper intake manifold (plenum) needs to be removed to access the rear (bank2) plugs (3 there). After removing, you should gain access to the other 3 coils. Unplug and remove the other 3 coils then remove the plugs. Any time the intake manifold is removed, you must replace the gasket, so make sure you replace the manifold gasket before putting it back together.
Good possibility one of your spark plugs or coils are bad.
i think it cuse by body ground
under the ignition coils, there are one coil for each spark plug.
Most likely, the problem is the ignition coils, though it's a good idea to change the wires while you're in there.