Get some fleetguard coolant test strips and test the coolant for
presence of dca4/fw16 coolant additives.  If the level isn't right,
you could have problems with pinholes in the water jacket called
cavitation.

I drive an F350 with a 7.3 Turbo IDI.  I have had no problems other
than transmission issues.  The E4OD tranny is a poor excuse for a power
train.  Ford made a mistake and now it's tough to fix it.  I've gone
through 2 transmissions now and I tow a considerable amount.

The last rebuild saw changes to the seals, a new shift board, new
clutches and a heavy duty torque convertor.  They also suggested other
improvements that were done as well.  I put in the biggest cooler I
could find and I have no problems to date.

I can tell you that the next time I have a tranny problem, it's a six
speed for sure.

Love the power plant.  Mine will probably need an overhaul over the
next 100- 200K but the power is still there!

If the price is right and everything looks ok with respect to the drive
train, buy it!

The Hilton Farmer
Beautiful BC