Lincoln Repair Questions? Ask a Mechanic for Answers ASAP
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For the P0663 Usually this is caused by the tuning valve itself. It is located on the back of the intake manifold under the wiper cowl. There are two of them the upper one is for bank two. I usually replace both. P0301 is usually cause by an ignition coil. I would replace the #1 coil and spark plug and retest. Check for oil in the spark plug well, its very common for the valve covers to leak into the plug wells causing the coils to fail. The upper intake manifold needs to be removed to replace the #1 coil, its on the passenger side closest to the radiator.
There is no published spec for the actuator as far as ohm checking, there are circuit tests but you need a scanner that can command the actuator while measuring voltages, also the PCM needs to be disconnected for some of the tests. Accessing the PCM s even harder then removing the intake on these. As far as the coil goes it would need to be completely failed to even show bad when testing. If its misfiring intermittently then the only way to verify it would be to swap it with another cylinder and clear the code then wait for the code to set and see if it moved the cylinder you changed it to.
Oil pan gasket also known to leak. If the plug wells are dry I would not bother with the valve cover gaskets. Usually the only place they leak is into the plug wells. Replace upper intake gaskets while you have the intake off. Replace spark plugs with any coil replaced. Links for valve covers below.
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Thanks for the reply. I have never seen one of those terminals pull out without force but I suppose anything is possible. The Ford coils are all the same part number for all the cylinders, not sure for Jag coils. I would think the valves would be the same even with Jag numbers. Replacing all the coils under the intake would be advisable.
The biggest killer of coils is excessive plug gap, it really overworks the coils when the gap is too large. New links below for valve covers.
There is no coolant in the intake other than those two small hoses for the EGR cooler, maybe something in that area or the tstat housing area. Ford does not provide vacuum diagrams. If you can upload a picture here maybe I can tell if I can see it.
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Customer Last Viewed 10/21/2015 at 8:56:07 PM 8 hr(s) 58 minute(s) ago
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