94 e320 EGR tube cleaning How many hours to do?

[Bob Weir]

Many replies indicate Code 26 is for the EGR and the tube should be cleaned out especially at the intake manifold.

My local shops "never heard of it," so what's a fair number of "PRO" hours to do it and could a DIY'er do it? Out of curosity, how much must be dissambled to get to the EGR tube where it enters the intake manifold.

Thanks
Bob