Ford

I have a 2001 ford e350 van. my "service engine soon" light came on as i was noticing some power loss and engine roughness. i pulled off the freeway within 3 to 5 minutes to find the remaining oil pooling underneath. the entire underside and back side of the van was coated. after getting the repair which included: oil pan gasket - e350 super duty, gas, v10 f7uz 6710 aa thermostat - e350 super duty diesel main bearing oil seal/rear engine cover plate -e 350 super duty diesel - rear f4tz 6701 a then, of course oil & filter after driving it home after the repair i noticed that at near 50 to 55 mph there is a little subtle roughness that i am not accustomed to. i also noticed that same subtle roughness the day before these seals went out. maybe i am paranoid but is there something i should know about before i go on a long trip tomorrow?

If your rings are worn, the exess blowby could have blown out the rear main seal and caused other leaks. 2001-what is your mileage? have you got an airfilter that works? any induction leaks? what is your compression like? are you using oil? warning: a worn diesel will run on sump fume blowby with increased power until the sump is dry-wrecking the engine. there are 2 easy ways to stop a motor in this mode- 1 throw the decompressor, or 2 seal the air intake until it stops-do not use your hand! no, i would not drive it anywhere until i knew much more about what is going on. and the mechanic is a fool for not suggesting these scenarios, as they are well known to all competent diesel mechanics.