CDTI randomly shutting down?

Gedget75 · 18th June 2018, 10:42

Hi guys,

I'm facing a very strange problem.
My 75 Tourer CDTI is randomly shutting down, without apparent reason.

I am driving normally, and it stops from accelerating and dropping the rpms, like if I was without fuel, and once I press the clutch, the engine goes off.

Then, I turn the key again for start, and it goes again, like if it was nothing.

First time it happened, I didn't give attention since I though it was a random error. But this is the 4th time happening, in the space of 1 or 2 months.

I think I have no errors or engine lights coming on, so have no idea what could be happening.

Does anyone has experienced something like the situation here described?

Regards

Mike Noc · 18th June 2018, 10:48

First thing to check is that the plenum drains are clear and the ECM hasn't gone for a swim.

If the cutting out is when you are accelerating, then it could be down to injector leakback, but before you test for that check and clean the HP fuel pressure sensor plug connections - it sits on the end of the common fuel rail, and the HP fuel pressure regulator plug connections - that sits on the end of the HP fuel pump.

Gedget75 · 18th June 2018, 10:54

Quote:

Originally Posted by Mike Noc

First thing to check is that the plenum drains are clear and the ECM hasn't gone for a swim.

If the cutting out is when you are accelerating, then it could be down to injector leakback, but before you test for that check and clean the HP fuel pressure sensor plug connections - it sits on the end of the common fuel rail, and the HP fuel pressure regulator plug connections - that sits on the end of the HP fuel pump.

Yes this happens when I am accelerating, and then I feel that kick and the rpms dropping, I keep trying to accelerate kicking the pedal but does not work, just like when you run out of fuel.

Additionally, it also happened one time while I was braking very hard.
I was braking and when the car stopped, it went off.

RoverP480 · 18th June 2018, 12:41

One piece of advise I had many years ago from a Diesel Engineer, was if any problems, first change fuel filter for a new one. I had problems with engine not running properly on my Diesel Land Rover and I took it in to be checked. First thing he did was to change the filter, I complained that I had only been changed the previous week. He opened it up and it was black with rubbish. Problem solved and a lesson learnt.

Gedget75 · 18th June 2018, 13:53

Quote:

Originally Posted by RoverP480

One piece of advise I had many years ago from a Diesel Engineer, was if any problems, first change fuel filter for a new one. I had problems with engine not running properly on my Diesel Land Rover and I took it in to be checked. First thing he did was to change the filter, I complained that I had only been changed the previous week. He opened it up and it was black with rubbish. Problem solved and a lesson learnt.

Supposedly I changed the fuel filter 6 months ago... I think that it will be very unlikely that this could be the reason for this problem...

Yorkshire GOC · 18th June 2018, 16:54

Worth checking to see if your ECU has been "drowned" in the Plenum chamber - if the ECU has been soaked it will scramble your engine sensors readings leading to unexplained engine cut out. Diesels are vulnerable to this as the ECU is not water proofed - unlike petrol versions. So worth checking to see if it is dry or not.

Ameph · 23rd June 2018, 10:18

Had the same symptoms with my kv6 petrol. Found it was a faulty crank angle sensor. Once Ireplaced it I haven't had a problem since.

75c · 23rd June 2018, 10:30

This happened to mine, couldn't get to the bottom of it. Mechanic changed the pcv & fuel filters, never happened since.

Lee T · 24th June 2018, 11:17

A member local to me had the same symptoms that turned out to be caused by a leaking HP fuel pump.

18th June 2018, 10:42	#1
Gedget75 Avid contributor Rover 75 Saloon Join Date: Oct 2015 Location: Lisbon Posts: 150 Thanks: 13 Thanked 5 Times in 4 Posts	CDTI randomly shutting down? Hi guys, I'm facing a very strange problem. My 75 Tourer CDTI is randomly shutting down, without apparent reason. I am driving normally, and it stops from accelerating and dropping the rpms, like if I was without fuel, and once I press the clutch, the engine goes off. Then, I turn the key again for start, and it goes again, like if it was nothing. First time it happened, I didn't give attention since I though it was a random error. But this is the 4th time happening, in the space of 1 or 2 months. I think I have no errors or engine lights coming on, so have no idea what could be happening. Does anyone has experienced something like the situation here described? Regards

18th June 2018, 16:54	#6
Yorkshire GOC I really should get out more....... Rover 75 connoisseur se v6 auto Join Date: May 2014 Location: Hull Posts: 2,090 Thanks: 1,842 Thanked 623 Times in 469 Posts	Worth checking to see if your ECU has been "drowned" in the Plenum chamber - if the ECU has been soaked it will scramble your engine sensors readings leading to unexplained engine cut out. Diesels are vulnerable to this as the ECU is not water proofed - unlike petrol versions. So worth checking to see if it is dry or not. __________________ 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.

24th June 2018, 11:17	#9
Lee T Gets stuck in MG ZT Join Date: Jul 2014 Location: Liverpool Posts: 875 Thanks: 180 Thanked 248 Times in 189 Posts	A member local to me had the same symptoms that turned out to be caused by a leaking HP fuel pump. __________________ [SIGPIC][/SIGPIC]

18th June 2018, 10:48	#2
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,585 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	First thing to check is that the plenum drains are clear and the ECM hasn't gone for a swim. If the cutting out is when you are accelerating, then it could be down to injector leakback, but before you test for that check and clean the HP fuel pressure sensor plug connections - it sits on the end of the common fuel rail, and the HP fuel pressure regulator plug connections - that sits on the end of the HP fuel pump.

18th June 2018, 12:41	#4
RoverP480 Gets stuck in None at the moment Join Date: Jan 2018 Location: Hereford Posts: 501 Thanks: 1 Thanked 165 Times in 146 Posts	One piece of advise I had many years ago from a Diesel Engineer, was if any problems, first change fuel filter for a new one. I had problems with engine not running properly on my Diesel Land Rover and I took it in to be checked. First thing he did was to change the filter, I complained that I had only been changed the previous week. He opened it up and it was black with rubbish. Problem solved and a lesson learnt.

23rd June 2018, 10:18	#7
Ameph Newbie Rover 75 sedan Join Date: Mar 2018 Location: Strathalbyn Posts: 12 Thanks: 0 Thanked 9 Times in 7 Posts	Had the same symptoms with my kv6 petrol. Found it was a faulty crank angle sensor. Once Ireplaced it I haven't had a problem since.

23rd June 2018, 10:30	#8
75c Gets stuck in Rover 75 Saloon Join Date: Feb 2018 Location: Belfast Posts: 601 Thanks: 150 Thanked 294 Times in 190 Posts	This happened to mine, couldn't get to the bottom of it. Mechanic changed the pcv & fuel filters, never happened since.