Rover 75 2 litre diesel - cutting out & temperature dropping to zero

Keith1 · 11th October 2011, 19:49

Hi, I'm looking for some advice please.

I own a Rover 75 2 litre diesel (2001). I've recently had trouble with it cutting out on me. After 10 minutes it starts but 10 minutes later cuts out again. I noticed on the fourth time this happened the temperature gauge dropped to zero. I've changed the diesel filter and had a brand new back end fuel pump on it. It ran okay for 3 days then cut out again and will not start at all now.

Has anybody else heard of / had the same problem?

I would be grateful of any help / ideas - I've spent alot of money on this car and am feeling very disgruntled at the moment!

Thanks

Keith

spyder · 11th October 2011, 19:53

Does only the temp. gauge drop to zero, or do other electrical circuits get affected. It could be one of the sensors, or as simple as a loose earth/wire. Hard to track down though.

More info would help if you are able.

Craig

Keith1 · 11th October 2011, 20:00

Hi Craig

No other electrical faults just noticed the temperature gauge dropped to zero.

I've been told it could possibly be the front fuel pump now but heard this is really expensive?

I've ran out of money so hoping I'm not looking at major expense!

Keith

spyder · 11th October 2011, 20:04

Is the front fuel pump (UBP) buzzing when you turn the ignition on. If not tap it with a hammer and see if it kickstarts it.
I don't know why this would affect the gauge, other than being on the same circuit.
Checked fuses and relays ??

Keith1 · 11th October 2011, 20:11

Not sure - I'll give that a go tomorrow and let you know.

Before it "conked" out completely, I used to tap the fuel tank and it would fire up???

Checked the fuses and relays as much as I can.

Problems like this are a bit above me.

Thanks for your help & suggestions, much appreciated - will give your suggestion a go tomorrow and let you know.

Keith

T-Cut · 11th October 2011, 20:19

I suspect the temperature gauge dropping down is the best clue in this. The fueling rate is controlled by the ECU which amongst other things uses the coolant temperature to adjust the running conditions. If the engine's running normally and suddenly the ECU thinks the engine temperature is 'zero' it will over fuel and the engine will stop (I think).
I'd suggest you check the connection/wiring to the coolant temperature sensor.

TC

bl52krz · 11th October 2011, 20:26

Quote:

Originally Posted by T-Cut

I suspect the temperature gauge dropping down is the best clue in this. The fueling rate is controlled by the ECU which amongst other things uses the coolant temperature to adjust the running conditions. If the engine's running normally and suddenly the ECU thinks the engine temperature is 'zero' it will over fuel and the engine will stop (I think).
I'd suggest you check the connection/wiring to the coolant temperature sensor.

TC

As spyder has said,it could be a bad earth somewhere. There are numerous earth points on the Rover 75.I think there is a point at the bottom of the side panel/drivers door side that people have found to give trouble.It is behind the trim cover by where your feet are, pedal area.
have you tried disconnecting the battery for half an hour? This sometimes resets some gremlins. Best of luck. Let us know what happens. Someone somewhere will sort it for you on here.

bl52krz · 11th October 2011, 20:28

Quote:

Originally Posted by T-Cut

I suspect the temperature gauge dropping down is the best clue in this. The fueling rate is controlled by the ECU which amongst other things uses the coolant temperature to adjust the running conditions. If the engine's running normally and suddenly the ECU thinks the engine temperature is 'zero' it will over fuel and the engine will stop (I think).
I'd suggest you check the connection/wiring to the coolant temperature sensor.

TC

Hi T-CUT.That sounds about the right diagnosis.

RPWC · 11th October 2011, 20:29

If its your ubp,it will cost about £100 + vat,its not hard to fit,remove battery,and battery box(torx bits),the pump is held in place by an 8mm bolt and u clamp. unclip the electrcal plug and remove the inlet pipe from the bottom,and outlet pipe from the top

SD1too · 12th October 2011, 17:20

Quote:

Originally Posted by T-Cut

I suspect the temperature gauge dropping down is the best clue in this.

Keith,

When the gauge drops to zero is it accompanied by the red overheating warning light illuminating and does the engine cooling fan start running?

Simon.

11th October 2011, 19:49	#1
Keith1 Newbie Rover 75 saloon Join Date: Oct 2011 Location: Derby Posts: 13 Thanks: 0 Thanked 0 Times in 0 Posts	Rover 75 2 litre diesel - cutting out & temperature dropping to zero Hi, I'm looking for some advice please. I own a Rover 75 2 litre diesel (2001). I've recently had trouble with it cutting out on me. After 10 minutes it starts but 10 minutes later cuts out again. I noticed on the fourth time this happened the temperature gauge dropped to zero. I've changed the diesel filter and had a brand new back end fuel pump on it. It ran okay for 3 days then cut out again and will not start at all now. Has anybody else heard of / had the same problem? I would be grateful of any help / ideas - I've spent alot of money on this car and am feeling very disgruntled at the moment! Thanks Keith

11th October 2011, 19:53	#2
spyder This is my second home 75 CDT Auto Tourer , Rover 45 , Astra, Zaffira, Chev Captiva Join Date: Mar 2011 Location: Wilts Posts: 3,342 Thanks: 203 Thanked 436 Times in 360 Posts	Does only the temp. gauge drop to zero, or do other electrical circuits get affected. It could be one of the sensors, or as simple as a loose earth/wire. Hard to track down though. More info would help if you are able. Craig __________________ Chrome skull caps, EGR cleaned (original housing), Mondeo lower mounting, 12V outlets in the armrest and tourer boot, cat fixed, working FBH, Lidl plenum covers, DD with reverse camera.New speakesr/Tweeters with MDF rings. wood dash, Memory leather seats, wooden finished steering and handbrake, Xenon headlights.

11th October 2011, 20:04	#4
spyder This is my second home 75 CDT Auto Tourer , Rover 45 , Astra, Zaffira, Chev Captiva Join Date: Mar 2011 Location: Wilts Posts: 3,342 Thanks: 203 Thanked 436 Times in 360 Posts	Is the front fuel pump (UBP) buzzing when you turn the ignition on. If not tap it with a hammer and see if it kickstarts it. I don't know why this would affect the gauge, other than being on the same circuit. Checked fuses and relays ?? __________________ Chrome skull caps, EGR cleaned (original housing), Mondeo lower mounting, 12V outlets in the armrest and tourer boot, cat fixed, working FBH, Lidl plenum covers, DD with reverse camera.New speakesr/Tweeters with MDF rings. wood dash, Memory leather seats, wooden finished steering and handbrake, Xenon headlights.

11th October 2011, 20:29	#9
RPWC This is my second home 75 model car Join Date: Apr 2011 Location: Newcastle upon Tyne Posts: 20,177 Thanks: 4,008 Thanked 5,083 Times in 3,114 Posts	If its your ubp,it will cost about £100 + vat,its not hard to fit,remove battery,and battery box(torx bits),the pump is held in place by an 8mm bolt and u clamp. unclip the electrcal plug and remove the inlet pipe from the bottom,and outlet pipe from the top __________________ Cheers. Rich…

11th October 2011, 20:00	#3
Keith1 Newbie Rover 75 saloon Join Date: Oct 2011 Location: Derby Posts: 13 Thanks: 0 Thanked 0 Times in 0 Posts	Hi Craig No other electrical faults just noticed the temperature gauge dropped to zero. I've been told it could possibly be the front fuel pump now but heard this is really expensive? I've ran out of money so hoping I'm not looking at major expense! Keith

11th October 2011, 20:11	#5
Keith1 Newbie Rover 75 saloon Join Date: Oct 2011 Location: Derby Posts: 13 Thanks: 0 Thanked 0 Times in 0 Posts	Not sure - I'll give that a go tomorrow and let you know. Before it "conked" out completely, I used to tap the fuel tank and it would fire up??? Checked the fuses and relays as much as I can. Problems like this are a bit above me. Thanks for your help & suggestions, much appreciated - will give your suggestion a go tomorrow and let you know. Keith

11th October 2011, 20:19	#6
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	I suspect the temperature gauge dropping down is the best clue in this. The fueling rate is controlled by the ECU which amongst other things uses the coolant temperature to adjust the running conditions. If the engine's running normally and suddenly the ECU thinks the engine temperature is 'zero' it will over fuel and the engine will stop (I think). I'd suggest you check the connection/wiring to the coolant temperature sensor. TC