1998 Fiat Ducato (Burstner) starting issue

[Scrappie]

We parked up yesterday, didn't do anything different but now It will turn over but not start. There are no dash board lights on the first key click either. We have no manual for the vehicle unfortunately either.
Any assistance would be appreciated. Thanks

 

[hilldweller]

Second one today - possibly the earth strap from chassis to engine block underneath.

Try a jumper lead from bett neg to engine block.

 

[Boringfrog]

Any immobilizer fitted?

 

[Stealaway]

Suspect the battery connections first.
Check that the battery connections are PERFECT!!! Remove them both and clean thoroughly.

 

[TheBig1]

If the engine turns over and wont fire, suspect the immobiliser which as a problem with lots of ducato/boxer vans of that age. The receiver ring round the ignition barrel slips and sometimes cracks. solution is to have a good auto electrician bypass it.
no lights on dash also sounds like an ignition lock switch failed

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[Scrappie]

Thanks for the responses. The problem has been found. The black plug at the bottom of the ignition barrel has worked loose because the screws won't tighten up. We have used a cable tie to hold it in place for the moment.
It is now working. However, when the tie is too tight, the engine stays on, without the key in the ignition, until the residual charge has gone!