Hi,

parked my van last night & was running ok, went to start it this morning & very loud knocking noice from engine as soon as it started, turned it off straight away lifted bonnet & nothing apparent, started it again & listened under bonnet, doesn't sound like big ends, turned off & went to start it again but now no go?? Any ideas??

Cheers Lee

Could a faulty crank sensor cause this? where do I find & how do I test this?