2.5l V6 Non starting
 

Hi folks got a slight problem.

I was driving along at about 100 KPH and it coughed and stopped. It then would start and run for about two seconds, cough and cut out.

I had to have it towed home and since then I've checked the following

Disconnected the fuel hose from the injector rail and the fuel does come out so the pump is working. I took the bleeding valve out of the injector rail and fuel came out of there.

I replaced the camshaft sensor and the crankshaft sensor. Admittedly, they were secondhand. The timing belt was replaced about a year ago and it is turning.

So where do I go from here? Any ideas?

Be excellent to each other

Damien

A failing crank sensor will cause a cut out (failed cam sensor only causes non starts) - when you turn her over does the rev counter move at all - if not its a failed crank sensor. Its an easy test to at least confirm or discount the cause.

Check the fuses in the engine bay fusebox, do you have any fault codes as this might help

Dave

Hello Damien,

The safest way to check fuel pump operation and the crankshaft sensor is to either lift the rear seat cushion or open the fuel filler cap and listen whilst an assistant turns the ignition key to 'start'. If you disconnected the fuel supply hose without cranking it doesn't prove much.

Does you car have the later fuel filter which is prone to loosening resulting in the symptoms you have described?

How do you know that the timing belt is intact as it isn't visible without dismantling?

I would refit your original camshaft sensor because, as Yorkshire GOC points out, it will be fine and a second-hand replacement only introduces more uncertainty.

Simon