i have a vauxhall cavalier 4x4 1992 it was working fine until some welding was done on it for m o t now it just wont start the battery and altenator was disconnected any help would be much apprieciated have been trying everything for over a week now

james, April 2009

check the ancillery pully the outer ring is held to the inner core by rubber similer to that used on eng mounts and bushes it can slip moving the timing marks symtoms are low compression flooding everything else will seem normal if you are unconvinced line up timing marks and check btdc

kon/eng, May 2009

its a petrol started with basics then changed e c u, fuel pressure regulator, cam belt, timings ok spark plugs ,wiring loom, coil,v a f,distributor cap,rotor arm,fuel pump ok fuel flow ok the welding was inner wheel arch at front no wires damaged it fires up now but immediately shutsdown got clifford alarm with immobiliser and auto start wondering now if it has anything to do with that. its an 8 valve seh 2 litre engine.also checked fuses.

james, April 2009

depending where you were welding you may have severed a fuel line or wire which has blown a fuse is it diesel or petrol. if engine is turning and there is fuel then it is electoral if there is no fuel then that si ur problem.start with the basics.

tom, April 2009