the vibration is most likely caused by your trans "jump" I have 5 full size
fords with the 4.6, and do not have any vibration problem with them. also, I
have driven many other cars with the 4.6, and none of them have a problem
Define older mileage. We have had a number of modular motors in my family
and I done of them have had any vibration problems. The highest mileage one
had 147,000 (5.4L in an Expedition) and it ran very smoothly the day I
traded it on a new one. The vast majority of cabs in my area are used Crown
Victoria police cars purchased at the State auction sale. Most of these have
hundreds of thousands of miles on the engine and they seem to be running
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