Out of the blue non starting CDTi

STUBIE · 28th August 2018, 19:48

My CDTi will not start - it just turns over.

This has come out of the blue after a local paint chap having it for a week for some smart repairs.

He said he found it difficult to start and when I collected it took about 3 attempts but once started I drove home Ok. After moving it around in front of the house it was getting harder to start and now just wont start at all.

I have just changed the fuel filter and have about a 3rd of a tank.

I hear a buzzing from the under bonnet pump so something is happening.

I have had a little pooling of diesel around the injectors a few weeks ago when the car was starting Ok which I tightened up and this has not got any worse but could be a factor.

I have ordered a 2nd hand IT UBP and a cam sensor just to rule these out.

Anyone close to Peterborough that could spare some time at the weekend to help me resolve the issue?

Stubs

Rogue · 28th August 2018, 19:54

Try getting someone to tap the UBP while you try and start her...

paul d · 28th August 2018, 19:58

Have a listen for the In Tank Pump as well, check the flow of fuel from the UBP to the fuel filter, should be a good flow not spurts.

Other issues can be the o ring on the regulator on the HP pump.

I've also in the past had starting issues caused by the Cam Sensor.

Regards

Paul

wullie480 · 28th August 2018, 20:11

Sounds like the intank pump has given up the ghost,

have a listen under the rear seat and also as suggested check the flow.

STUBIE · 29th August 2018, 19:30

Tried seeing what was coming thru the UBP and there wasn't a lot.

Went back and tried hitting the pump as it was priming and the note changed and I could here motion in the pipe to the filter, after that it successfully started with a bit of pedal.

So as stated looks like a replacement UBP will sort the issue.

Hope it comes before the weekend.

Any how to's on the forum on changing the Under bonnet pump.

Stubs

bl52krz · 30th August 2018, 19:48

Before you change the under bonnet pump, take the electrical connector off the top of the pump, and put some Vaseline on the connections and push the connector in and off a few times. Was told I needed a new ubp about 8 years ago, and after doing the above with Vaseline
, the new pump is still in the boot. Cost’s nothing to try it.

bl52krz · 30th August 2018, 19:57

Try the Engine &Technical section,then Artic has done a how-to,4th one down.Bit fiddley but easy enough.

STUBIE · 30th August 2018, 20:01

Quote:

Originally Posted by bl52krz

Before you change the under bonnet pump, take the electrical connector off the top of the pump, and put some Vaseline on the connections and push the connector in and off a few times. Was told I needed a new ubp about 8 years ago, and after doing the above with Vaseline
, the new pump is still in the boot. Cost’s nothing to try it.

Yep have tried that but no go, only when hotting the pump did the car start.

Stubs

STUBIE · 5th September 2018, 15:52

Well I replaced the UBP with a working 2nd hand unit and replaced the CAM sensor with a new patterned part made by Lemark.

However still struggling to start a bit - maybe tales 2 or 3 times with plenty of accelerator.

Once it's going it fine.

Anyone got any suggestions where next, would it run Ok if the ITP was duff and it had more than a quarter tank and would this cause problems starting.

Stubs

dave lincs · 6th September 2018, 08:25

Do a injector leak back test

28th August 2018, 19:48	#1
STUBIE This is my second home Back in a Rover Join Date: Nov 2006 Location: Peterborough Posts: 4,926 Thanks: 131 Thanked 357 Times in 261 Posts	Out of the blue non starting CDTi My CDTi will not start - it just turns over. This has come out of the blue after a local paint chap having it for a week for some smart repairs. He said he found it difficult to start and when I collected it took about 3 attempts but once started I drove home Ok. After moving it around in front of the house it was getting harder to start and now just wont start at all. I have just changed the fuel filter and have about a 3rd of a tank. I hear a buzzing from the under bonnet pump so something is happening. I have had a little pooling of diesel around the injectors a few weeks ago when the car was starting Ok which I tightened up and this has not got any worse but could be a factor. I have ordered a 2nd hand IT UBP and a cam sensor just to rule these out. Anyone close to Peterborough that could spare some time at the weekend to help me resolve the issue? Stubs Last edited by STUBIE; 28th August 2018 at 19:56..

28th August 2018, 19:54	#2
Rogue I really should get out more....... 75 CDT SE 160 Saloon Join Date: May 2017 Location: Thorpe St Andrew, Norwich Posts: 2,644 Thanks: 1,386 Thanked 1,096 Times in 774 Posts	Try getting someone to tap the UBP while you try and start her... __________________ Glutton for punishment --- Previously ... 2.6 SD1 x 2, 3.5 SD1, 820S, 820Si x2, 216 Gsi, 220T saloon, 414, 45 1.4 x2 and now a Cowley 75 CDT

28th August 2018, 19:58	#3
paul d Posted a thing or two Rover 75 Saloon & Saab 93 'vert Join Date: Mar 2013 Location: coventry Posts: 1,378 Thanks: 199 Thanked 204 Times in 162 Posts	Have a listen for the In Tank Pump as well, check the flow of fuel from the UBP to the fuel filter, should be a good flow not spurts. Other issues can be the o ring on the regulator on the HP pump. I've also in the past had starting issues caused by the Cam Sensor. Regards Paul __________________ The Colour WAS CELESTIAL...! Meanwhile Back At The Ranch...!!!

28th August 2018, 20:11	#4
wullie480 This is my second home 1 Join Date: Dec 2010 Location: Banned Posts: 5,195 Thanks: 528 Thanked 1,022 Times in 786 Posts	Sounds like the intank pump has given up the ghost, have a listen under the rear seat and also as suggested check the flow. __________________ [SIGPIC][/SIGPIC]

30th August 2018, 19:48	#6
bl52krz This is my second home Rover 75 cdt club + Rover 2.5 KV6 Conni SE Join Date: May 2008 Location: Birmingham Posts: 11,387 Thanks: 6,587 Thanked 2,262 Times in 1,729 Posts	Before you change the under bonnet pump, take the electrical connector off the top of the pump, and put some Vaseline on the connections and push the connector in and off a few times. Was told I needed a new ubp about 8 years ago, and after doing the above with Vaseline , the new pump is still in the boot. Cost’s nothing to try it. __________________ Great Barr, Birmingham.

29th August 2018, 19:30	#5
STUBIE This is my second home Back in a Rover Join Date: Nov 2006 Location: Peterborough Posts: 4,926 Thanks: 131 Thanked 357 Times in 261 Posts	Tried seeing what was coming thru the UBP and there wasn't a lot. Went back and tried hitting the pump as it was priming and the note changed and I could here motion in the pipe to the filter, after that it successfully started with a bit of pedal. So as stated looks like a replacement UBP will sort the issue. Hope it comes before the weekend. Any how to's on the forum on changing the Under bonnet pump. Stubs

30th August 2018, 19:57	#7
bl52krz This is my second home Rover 75 cdt club + Rover 2.5 KV6 Conni SE Join Date: May 2008 Location: Birmingham Posts: 11,387 Thanks: 6,587 Thanked 2,262 Times in 1,729 Posts	Try the Engine &Technical section,then Artic has done a how-to,4th one down.Bit fiddley but easy enough. __________________ Great Barr, Birmingham.

5th September 2018, 15:52	#9
STUBIE This is my second home Back in a Rover Join Date: Nov 2006 Location: Peterborough Posts: 4,926 Thanks: 131 Thanked 357 Times in 261 Posts	Well I replaced the UBP with a working 2nd hand unit and replaced the CAM sensor with a new patterned part made by Lemark. However still struggling to start a bit - maybe tales 2 or 3 times with plenty of accelerator. Once it's going it fine. Anyone got any suggestions where next, would it run Ok if the ITP was duff and it had more than a quarter tank and would this cause problems starting. Stubs

6th September 2018, 08:25	#10
dave lincs Posted a thing or two Rover 75 Saloon Join Date: Mar 2014 Location: Louth Posts: 1,409 Thanks: 380 Thanked 986 Times in 476 Posts	Do a injector leak back test

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