Possible causes of breakdown

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wild bill
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Possible causes of breakdown

Came to a stop last night, fortunately not far from home so car back in garage. Car suddenly lost power. Basically no cylinders receiving spark to fire as far as i can work out so far.

The engine turns over fine but no ignition light and no whirring prime of fuel pump. Not the intertia switch (must get around to removing that soon) and as i had a spare coil i changed it just because it was quick and i had the time. Battery has plenty of power and i've charged it over night. No blown fuses so what else could i check?

Jonathan Kay
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You have an ignition warning light but it doesn't come on when the switch is turned? And it used to come on then?

Any recent work on it?

What's your ignition set-up?

And do you need any wiring diagrams? 

Jonathan

wild bill
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To answer those points

1) Yes it used to

2) No not for a long time

3) That would be like feeding strawberries to pigs. I might feel differently if i worked for NASA Rofl

Jonathan Kay
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I suggest checking the wiring and continuity at the ignition switch. 

Jonathan

ECR
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What engine is it?

 

Wrightpayne
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I had this and one of the internal springs in the ignition switch had broken. I purchased a defender replacement switch from Rimmer and fitted it into the original lock barrel.

The switch has a copper shoe that bridges the various contacts as you turn the key. The springs provide contact pressure onto the shoe.

I was on a trackday so just made a jump cable up ;-) Message me if you need more info.

Ian

Geoff Brown
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Immobiliser failure? 

John Vine
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I'd agree about checking the IGN switch first of all.  It may simply be a detached spade connector...

JV

wild bill
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I don't have an immobiliser on the car. The failure of a spring is a possible as all the spade connectors are intact. The car is running a 2.3 Duratec. It feels like an ignition barrel issue (i know i know a pointless observation) so possibly a replacement barrel. Luckily i live next door to Beckington Motors. They cant get to it until Tuesday so weekend stuffed but never mind i'll go and get the splitty started to keep my petrol fix alive. Bloomin frustrating. Perhaps i should do a course in vehicle electronics.

john milner
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My Rover K was intermittently unable to start but would turn over. The Crankshaft position sensor was at fault which caused the ECU not to know where the pistons where. I assume a Duratec will have something similar.

Rover crankshaft sensor

Beagler
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Some checks with a voltmeter may help to eliminate some of simple faults such as ignition switch. 

2019 310S 1.6 Sigma