I had this heading in frequently asked questions if any one needs to recap but after some digging the engine is a mess after frim what i can tell someone fitted the cambelt incorrectlyso the engine is coming out but an offer of a 2.8 grand voyager has been offered to me for its engine will it fit ?and are there any modifications needed for the swap ?like wiring ,ecm etc ?

Hopefully someone else from Europe or Australia can provide a more definitive answer.
There were no Voyager diesels here in the US.

I'm pretty sure that when going from a 2.5 to a 2.8 you would also need a ECM for a 2.8 Jeep Liberty.
Also, because the Voyager minivan is front wheel drive, these things will not be the same:
motor mounts
intake routing
exhaust manifold and exhaust connection
serpentine belt pulleys and accessory brackets

With both engines out, you would have to do a careful analysis or what things are same and what is different.
Then determine what 2.5 parts can be swapped onto the 2.8.

_________________
U.S. Army Retired

Ok thanks for the advice.

Ive found ausjeepoffroad thanks again people