2000cc 75 TD not starting up

Enzo1 · 29th June 2022, 15:46

Hello,

every once in a while my 1999 2000cc 75 TD does not start up.

A few days ago I had the following:

the car did not start up; or it did start up and then the engine stopped after a few seconds.
I waited an hour or so and tried again
again, the car did not start up. After a few attempts, it did start up, and this time I pressed the speed pedal a bit to try and keep the engine on.
It worked, and a large amount of blue smoke was put out.
The following days I could verify that normally no smoke is emitted.

I am at a loss here, so this is to ask for possible ideas!

Many thanks, kind regards,

Enzo

Mike Noc · 2nd July 2022, 23:04

Maybe contaminated fuel? Has the fault occureo again or was it a one off?

Enzo1 · 5th July 2022, 18:49

Quote:

Originally Posted by Mike Noc

Maybe contaminated fuel? Has the fault occureo again or was it a one off?

Hello, thank you so much for your reply
the fault occurred again, after having tanked to a different fuel brand...
I was wondering if electromagnetic interference could play a role, as the occurrence of faults intensifies at the change of seasons
Perhaps I should ask my garage to disable the alarm system completely
Really, I'm at a loss...

Yorkshire GOC · 5th July 2022, 19:40

Assuming you have no engine cut outs while driving and its just a non start issue i would consider a failing Cam sensor

Worth a try .

Yorkshire GOC · 5th July 2022, 19:44

You also mention ambient temperature - when she fails to start does the rev counter/tachograph flicker at all - if not you could have a failing Crank Sensor and they do fail when hot.

Enzo1 · 7th July 2022, 15:58

Quote:

Originally Posted by Yorkshire GOC

Assuming you have no engine cut outs while driving and its just a non start issue i would consider a failing Cam sensor

Worth a try .

Indeed, no engine cut out when driving! I will follow your suggestions and ask a garage.
Thank you very much!

Ed3 · 7th July 2022, 18:58

Although it would be rare for an M47 engine. Do people want to comment on the possibility of a seal or head gasket letting in oil when parked? The comment about blue smoke which then clears in other makes of engines would make me think oil has trickled through from a worn out seal or head gasket when parked? And the problem would not occur once diving?

chambl01 · 10th July 2022, 20:13

I had a similar issue many years ago with my diesel. Tried many things and was found to be a faulty fuel sensor relay switch. Its another fuse box located under the passenger footwell. You have to be a contortionist to see it upside down but worth a very cheap fix if it is.

I had my car towed to 3 local garages and no one could fix it as they didn't know what it was. One garage blamed the ECU, sent it off for testing and it was absolutely fine.

I had my car transported to an exceptional gifted mechanic in Stourbridge called Terry Shaw. He had the car up and running in 20 mins after it arrived at his home. After a year and a half sat on the drive and garages had no idea why it wouldn't start, i was delighted. He saved her from the brink of being scrapped.

Only a suggestion and always happy to share

Mike Noc · 11th July 2022, 08:34

Yes Terry's knowledge of these cars is immense. He has now moved to Shropshire.

NewDoc · 11th July 2022, 09:07

Hi all. I am reading this thread with interest. As you all know I am having a few issues with my CDT too. Can anyone point out the exact location of the fuel sensor relay in the passenger footwell. It's worth me changing it to see if it cures a problem. Muchly appreciated. Dave.

I have a fuse box that doesnt match any of the ones in the Haynes book. There are 4 relays to the left of the fuses that are all identical.

29th June 2022, 15:46	#1
Enzo1 Newbie Rover 75 Join Date: Sep 2019 Location: Herent Posts: 15 Thanks: 3 Thanked 0 Times in 0 Posts	2000cc 75 TD not starting up Hello, every once in a while my 1999 2000cc 75 TD does not start up. A few days ago I had the following: the car did not start up; or it did start up and then the engine stopped after a few seconds. I waited an hour or so and tried again again, the car did not start up. After a few attempts, it did start up, and this time I pressed the speed pedal a bit to try and keep the engine on. It worked, and a large amount of blue smoke was put out. The following days I could verify that normally no smoke is emitted. I am at a loss here, so this is to ask for possible ideas! Many thanks, kind regards, Enzo

5th July 2022, 19:40	#4
Yorkshire GOC I really should get out more....... Rover 75 connoisseur se v6 auto Join Date: May 2014 Location: Hull Posts: 2,064 Thanks: 1,842 Thanked 623 Times in 469 Posts	Assuming you have no engine cut outs while driving and its just a non start issue i would consider a failing Cam sensor Worth a try . __________________ 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.

5th July 2022, 19:44	#5
Yorkshire GOC I really should get out more....... Rover 75 connoisseur se v6 auto Join Date: May 2014 Location: Hull Posts: 2,064 Thanks: 1,842 Thanked 623 Times in 469 Posts	You also mention ambient temperature - when she fails to start does the rev counter/tachograph flicker at all - if not you could have a failing Crank Sensor and they do fail when hot. __________________ 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.

11th July 2022, 09:07	#10
NewDoc Avid contributor Rover 75 Saloon Join Date: Jan 2022 Location: Heckmondwike, West Yorkshire Posts: 104 Thanks: 76 Thanked 64 Times in 23 Posts	Hi all. I am reading this thread with interest. As you all know I am having a few issues with my CDT too. Can anyone point out the exact location of the fuel sensor relay in the passenger footwell. It's worth me changing it to see if it cures a problem. Muchly appreciated. Dave. I have a fuse box that doesnt match any of the ones in the Haynes book. There are 4 relays to the left of the fuses that are all identical. __________________ What have I done? Pass me a spanner, please. 146th of 168 Rover 75s to come off the production line that day, and is the 24th of just 27 Midnight Blue diesel Club spec saloons Born: 2003-10-20 @14:58:12 Last edited by NewDoc; 11th July 2022 at 09:09.. Reason: new information

2nd July 2022, 23:04	#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: 11,548 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Maybe contaminated fuel? Has the fault occureo again or was it a one off?

7th July 2022, 18:58	#7
Ed3 Loves to post Rover 75 CDTi saloon Join Date: Nov 2017 Location: UK Posts: 306 Thanks: 88 Thanked 29 Times in 26 Posts	Although it would be rare for an M47 engine. Do people want to comment on the possibility of a seal or head gasket letting in oil when parked? The comment about blue smoke which then clears in other makes of engines would make me think oil has trickled through from a worn out seal or head gasket when parked? And the problem would not occur once diving?

10th July 2022, 20:13	#8
chambl01 Avid contributor Rover 75 Join Date: Aug 2014 Location: Cardiff Posts: 162 Thanks: 151 Thanked 75 Times in 28 Posts	I had a similar issue many years ago with my diesel. Tried many things and was found to be a faulty fuel sensor relay switch. Its another fuse box located under the passenger footwell. You have to be a contortionist to see it upside down but worth a very cheap fix if it is. I had my car towed to 3 local garages and no one could fix it as they didn't know what it was. One garage blamed the ECU, sent it off for testing and it was absolutely fine. I had my car transported to an exceptional gifted mechanic in Stourbridge called Terry Shaw. He had the car up and running in 20 mins after it arrived at his home. After a year and a half sat on the drive and garages had no idea why it wouldn't start, i was delighted. He saved her from the brink of being scrapped. Only a suggestion and always happy to share

11th July 2022, 08:34	#9
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: 11,548 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Yes Terry's knowledge of these cars is immense. He has now moved to Shropshire.