2.5l V6 Non starting

KOFFEE · 10th April 2022, 12:12

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

Yorkshire GOC · 10th April 2022, 12:32

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.

dave lincs · 10th April 2022, 12:54

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

Dave

SD1too · 11th April 2022, 07:12

Quote:

Originally Posted by KOFFEE

Disconnected the fuel hose from the injector rail and the fuel does come out so the pump is working.

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

10th April 2022, 12:12	#1
KOFFEE Regular poster Rover 75 saloon Join Date: Mar 2014 Location: Brisbane Posts: 34 Thanks: 0 Thanked 0 Times in 0 Posts	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

10th April 2022, 12:32	#2
Yorkshire GOC I really should get out more....... Rover 75 connoisseur se v6 auto Join Date: May 2014 Location: Hull Posts: 2,074 Thanks: 1,842 Thanked 623 Times in 469 Posts	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. __________________ She came off the Longbridge Line on 20-05-2003 The Silver Machine was the 13th of 160 Rover 75's to come off the production line that day and is the 100th of 527 Starlight Silver Rover 75 2.5 V6 Connoisseur SE Auto saloons listed in the build records produced world wide.

10th April 2022, 12:54	#3
dave lincs Posted a thing or two Rover 75 Saloon Join Date: Mar 2014 Location: Louth Posts: 1,430 Thanks: 380 Thanked 986 Times in 476 Posts	Check the fuses in the engine bay fusebox, do you have any fault codes as this might help Dave