I found a tsb on this.
3.0L ENGINE MIL ON WITH DTCS P0351 THROUGH
P0356 - MULTIPLE COIL PRIMARY CIRCUIT
This article supersedes TSB 05-11-1 to update the Service Procedure and Part List.
Some 2005-2006 Escape/Mariner vehicles equipped with a 3.0L engine, may exhibit a malfunction indicator lamp (MIL) on with two or more diagnostic trouble codes (DTCs) for coil on plug (COP) primary circuit faults (P0351 through P0356). This may be due to the spark plugs causing RF interference with the powertrain control module (PCM), resulting in damage to the PCM and COPs.
Appearantly an engineering flaw that the customer get stuck with. IF it was mine I think I would take this as high as I could go with ford to attempt to get it taken care of. Since you are a customer of the dealership, they may bend the rules.
Not sure how they are itemizing it but it sounds high.
The plugs call for 2.4 hours. To rplace them the colis have to come off and the intake m, anifold has to come off. So that's $240 ($100/hr?) 6 plugs are another 75, 2 coils at 130 is 260. Intakle gaskets another 20.I'm seeing $600 excluding tax, towing and diagnosis.
Wednesday, January 27th, 2010 AT 4:00 PM