1. replace the radiator hose that is leaking.
2. its probly just a little clip that broke.
3. where is the fuel leak coming from? cant help with such little info
4. define not working
5. the a/c could be alot of different things. i sugest you buy a book on ac and read it.
6. there are no ignition wires on a diesel. its possible you have a bad glow plug.
how long has it been since the valves were adjusted?

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