2005 E350 6.0 Disel No Power

[furnaceman787]

I have a 2005 E350 6.0Diesel.Yesterday I went to leave in the morning after letting it warm up for about 15 minutes and the van did not have any power.
Hit the gas revved up to high rpms and wouldn't shift until I let off the gas.Runs nice and smooth at idle just doesn't want to shift.Just had the oil changed.
Any ideas?

[furnaceman787]

Originally Posted by furnaceman787

I have a 2005 E350 6.0Diesel.Yesterday I went to leave in the morning after letting it warm up for about 15 minutes and the van did not have any power.
Hit the gas revved up to high rpms and wouldn't shift until I let off the gas.Runs nice and smooth at idle just doesn't want to shift.Just had the oil changed.
Any ideas?

Just wanted to add it was running fine before I took it in for oil change.Just wondering if they might have knocked off some kind of vacuum hose