Diesel Fuel Pump Problem - Which one??

Mozza75 · 26th April 2010, 19:02

Hi all,

I'm new on here, bought my 75 just over a week ago in a private sale and within a week it is now in the garage with a fuel pump problem as it won't start, it was intermitant to start with i.e. struggled to start on the Sunday but knocked the fuel filter a couple of times (very technical :-) ) and it started again. I then drove it for 600 miles over the next few days before it gave up starting on Thursday last week.
My independant has checked on the sensor which is showing a fuel pressure problem, he says that there are three pumps on this model (2001 TD) 1) in tank, 2) top of engine by filter & 3) bottom of engine driven by belts. He says that he can't work out if it is the tank pump or the bottom pump?
Anyone got any ideas? Any previous history?

Thanks
Chris

2Diesels · 26th April 2010, 19:08

Quote:

Originally Posted by Mozza75

Hi all,

I'm new on here, bought my 75 just over a week ago in a private sale and within a week it is now in the garage with a fuel pump problem as it won't start, it was intermitant to start with i.e. struggled to start on the Sunday but knocked the fuel filter a couple of times (very technical :-) ) and it started again. I then drove it for 600 miles over the next few days before it gave up starting on Thursday last week.
My independant has checked on the sensor which is showing a fuel pressure problem, he says that there are three pumps on this model (2001 TD) 1) in tank, 2) top of engine by filter & 3) bottom of engine driven by belts. He says that he can't work out if it is the tank pump or the bottom pump?
Anyone got any ideas? Any previous history?

Thanks
Chris

Sounds like classic symptoms of in tank pump, I've had a problem today which I suspect is a pump but has different symptoms to the norm. With yours when you switch the ign on you should hear the underbonnet pump (by the battery) & the in-tank one under the rear seat priming up the system

Mozza75 · 26th April 2010, 19:13

Cheers for the reply 2Diesels, yes i could hear the top one priming, but never listened to the tank one and it is now with the garage, however he told me there were 3 pumps whereas i only see people on here talk about two, is there 3? Is there a belt driven one?

2Diesels · 26th April 2010, 19:20

Quote:

Originally Posted by Mozza75

Cheers for the reply 2Diesels, yes i could hear the top one priming, but never listened to the tank one and it is now with the garage, however he told me there were 3 pumps whereas i only see people on here talk about two, is there 3? Is there a belt driven one?

The other one is the High Pressure pump on the injection side & is driven by the timing chain & is apparantly very reliable, I would get him to check for buzzing under the seat & also if you top the diesel up to half a tank it might just start which points towards the in-tank pump it's a strange phenomenon but that's the way they are it seems

Departed · 26th April 2010, 19:24

Quote:

Originally Posted by 2Diesels

The other one is the High Pressure pump on the injection side & is driven by the timing chain & is apparantly very reliable, I would get him to check for buzzing under the seat & also if you top the diesel up to half a tank it might just start which points towards the in-tank pump it's a strange phenomenon but that's the way they are it seems

I'd agree, the two problem ones are the in tank, and the electric underbonnet by the fuel filter. These are the low pressure pumps.

The high pressure pump can fail but a more common problem is the seal going and getting diesel in your oil sump. It's also the most expensive so start with the cheap options first.

Mozza75 · 26th April 2010, 19:24

Cheers 2Diesels, i'll call him in the morning!!

Wolves 75 · 26th April 2010, 19:42

Believe me pal, if the high pressure pump goes, the one driven off the cam chain, you will certainly know about it, as fuel and oil blows out of your dipstick like a whales blow hole, been there done that, deffo in tank by the sounds of it....

SMB1610 · 26th April 2010, 20:42

Quote:

Originally Posted by 2Diesels

Sounds like classic symptoms of in tank pump, I've had a problem today which I suspect is a pump but has different symptoms to the norm. With yours when you switch the ign on you should hear the underbonnet pump (by the battery) & the in-tank one under the rear seat priming up the system

I also have the same problem with my 75 diesel, does anyone know if you can just buy the motor part of the pump in the tank. Thanks

26th April 2010, 19:02	#1
Mozza75 Newbie 2001 Rover 75 Classic SE Saloon Join Date: Apr 2010 Location: Milton Keynes Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts	Diesel Fuel Pump Problem - Which one?? Hi all, I'm new on here, bought my 75 just over a week ago in a private sale and within a week it is now in the garage with a fuel pump problem as it won't start, it was intermitant to start with i.e. struggled to start on the Sunday but knocked the fuel filter a couple of times (very technical :-) ) and it started again. I then drove it for 600 miles over the next few days before it gave up starting on Thursday last week. My independant has checked on the sensor which is showing a fuel pressure problem, he says that there are three pumps on this model (2001 TD) 1) in tank, 2) top of engine by filter & 3) bottom of engine driven by belts. He says that he can't work out if it is the tank pump or the bottom pump? Anyone got any ideas? Any previous history? Thanks Chris

26th April 2010, 19:42	#7
Wolves 75 I really should get out more....... 75 connoisseur SE CDTi Join Date: Jun 2009 Location: Cheslyn Hay Posts: 2,488 Thanks: 7 Thanked 31 Times in 15 Posts	Believe me pal, if the high pressure pump goes, the one driven off the cam chain, you will certainly know about it, as fuel and oil blows out of your dipstick like a whales blow hole, been there done that, deffo in tank by the sounds of it.... __________________ Would rather push my 75 than drive a Jag

26th April 2010, 19:13	#3
Mozza75 Newbie 2001 Rover 75 Classic SE Saloon Join Date: Apr 2010 Location: Milton Keynes Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts	Cheers for the reply 2Diesels, yes i could hear the top one priming, but never listened to the tank one and it is now with the garage, however he told me there were 3 pumps whereas i only see people on here talk about two, is there 3? Is there a belt driven one?

26th April 2010, 19:24	#6
Mozza75 Newbie 2001 Rover 75 Classic SE Saloon Join Date: Apr 2010 Location: Milton Keynes Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts	Cheers 2Diesels, i'll call him in the morning!!