Originally Posted by jimmyjet
From whatever you were saying, I gather you experienced "valve float".
God did not intend XF's to be wound beyond 6,000 R's.
You are right man, I think he needs his engine rebuilt, his transmission replaced and fresh air in all his tires. Then he will need to shampoo his carpets and replace his floor mats before this issue is resolved.
My car hit 5999.99rpms the other day and I thought I was done for! Talk about a scare!
