Mechanics downloaded codes that referred to Ford TSB #05263
. Due to misalignment of the cylinder heads the valve seats recede which causes a misfire and low compression on #6
cylinder (confirmed by mechanic). The recommended repair consists of replacing the cylinder heads at a cost of $2000 plus.
Ford website indicates that this is not a common problem (less than 30%) but happens to 2004 through 2006 3.0 liter V6 vulcan motor.
I was wondering if others have had this problem, what was their repair, and how successful was the outcome?