CDT fuel level problem

andrei_teo · 10th April 2016, 21:58

Hello. Recently i bought a rover 75 cdt and i encountered some problems. Diesel indicator from dashboard always indicate more fuel in tank. (When indicates a quarter it means fuel tank is empty). I watched several threads here, i found the problem, the right one did not make good contact (now seems to be ok acording to resistance values) but i dont know what about the left one. I cannot pull it out and check if it s good. (It s kept by hoses that come from the right side). Moreover i have no idea how it should be placed back all the right stuff. (The pump with the level sender, the other static pump?!?, the tray that is inside). I saw some pictures here but do not understand their proper arrangement and I think that matters to indicate the correct amount of fuel from tank. I really apreciate if someone can give me some details about that. It s annoying to calculate all the time how much fuel i put and how much i can go with it. Thank you very much. Greetings.

Mike Noc · 11th April 2016, 08:38

Sounds very much like your in tank pump has failed - there is a quarter of a tank in there but you can't get it out if the ITP isn't working.

The reason is the self priming valve on top of the ITP - if it isn't running the valve stays open, and once the level in the tank drops to the top of the ITP the under bonnet pump just sucks air.

andrei_teo · 11th April 2016, 11:32

I think i fixed the problem with the quarter fuel indicator. When i checked the rheostat contact of the right side, firstly it showed to me about 50 Ohms when "empty" and about 165 when full. Now it shows me about 5 ohms "empty". I checked a picture here and it seems to be ok like that. The problem is that i cant check the left one because i cant pull it out. And moreover i m pretty sure that on the right side where is the pump all the things from there arent fitted correctly. I ve just threw the static pump somewhere to the left inside the tank and then i tried to fit the pump in that tray. I want to check the connector after i full the tank but firstly i want to fit correctly all the stuff from the right side.

Mike Noc · 11th April 2016, 11:44

Ah I see. There is a bit of info and a few photos here showing the refitting of the module back into the tank:

http://www.the75andztclub.co.uk/foru...d.php?t=123820

10th April 2016, 21:58	#1
andrei_teo Newbie Rover 75 Saloon Join Date: Mar 2016 Location: Bucharest Posts: 7 Thanks: 0 Thanked 1 Time in 1 Post	CDT fuel level problem Hello. Recently i bought a rover 75 cdt and i encountered some problems. Diesel indicator from dashboard always indicate more fuel in tank. (When indicates a quarter it means fuel tank is empty). I watched several threads here, i found the problem, the right one did not make good contact (now seems to be ok acording to resistance values) but i dont know what about the left one. I cannot pull it out and check if it s good. (It s kept by hoses that come from the right side). Moreover i have no idea how it should be placed back all the right stuff. (The pump with the level sender, the other static pump?!?, the tray that is inside). I saw some pictures here but do not understand their proper arrangement and I think that matters to indicate the correct amount of fuel from tank. I really apreciate if someone can give me some details about that. It s annoying to calculate all the time how much fuel i put and how much i can go with it. Thank you very much. Greetings.

11th April 2016, 08:38	#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: 11,550 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Sounds very much like your in tank pump has failed - there is a quarter of a tank in there but you can't get it out if the ITP isn't working. The reason is the self priming valve on top of the ITP - if it isn't running the valve stays open, and once the level in the tank drops to the top of the ITP the under bonnet pump just sucks air.

11th April 2016, 11:32	#3
andrei_teo Newbie Rover 75 Saloon Join Date: Mar 2016 Location: Bucharest Posts: 7 Thanks: 0 Thanked 1 Time in 1 Post	I think i fixed the problem with the quarter fuel indicator. When i checked the rheostat contact of the right side, firstly it showed to me about 50 Ohms when "empty" and about 165 when full. Now it shows me about 5 ohms "empty". I checked a picture here and it seems to be ok like that. The problem is that i cant check the left one because i cant pull it out. And moreover i m pretty sure that on the right side where is the pump all the things from there arent fitted correctly. I ve just threw the static pump somewhere to the left inside the tank and then i tried to fit the pump in that tray. I want to check the connector after i full the tank but firstly i want to fit correctly all the stuff from the right side.

11th April 2016, 11:44	#4
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: 11,550 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Ah I see. There is a bit of info and a few photos here showing the refitting of the module back into the tank: http://www.the75andztclub.co.uk/foru...d.php?t=123820