The dealer has a special tool kit available that can sometimes remove a broken GP w/o removal of the head. Not all dealers have the tool.
You can clean the IM/EGR with most solvents. I filled mine with B99 and left it overnight on the workbench. Helped loosen most, but not all, of the crud.
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Terry Allison
N. Calif. & Boca Chica, Panama
09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)
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