S60 2ltr petrol 2003 automatic fuel gauge misread

884ANDY · Dec 18th, 2015, 09:39

Morning all. Not really a problem, more of a niggle but the fuel gauge on the dash gives a misreading. Basically when the car is empty of fuel it shows quarter of a tank left on the needle and when I totally fill the tank up it stays at the full mark for quite a while then slowly drops down. I brought the car like this and the previous own said that the quarter tank mark was when to fill up as he had not got round to getting it fixed. As I say not really a problem but I do like my cars to work correct. Am I correct in thinking first port of call would be to replace the fuel sender sensors under the rear seats. Many thanks for any help.

Brendan W · Dec 18th, 2015, 10:09

Close. You first port of call would be to check out the transfer plumbing between the tank 'saddles' . If it's not working properly there can be lots of fuel on the side the pump isn't. This is a very common issue and many owners treat 1/4 as empty as it can be, effectively. Some cars will refuse to start at or below 1/4 unless pointing uphill or downhill etc etc.

884ANDY · Dec 18th, 2015, 15:28

Hi there, many thanks for your help earlier. Is there anything in particular I should be looking out for on the tank transfer. I have not looked at it on the car yet, just trying to go in with as much info as I can. Many thanks Andy

oragex · Dec 18th, 2015, 16:47

If the above checks fine, you may check if the sender unit moves easily. In a car with the metal tank model, it looks like this. The pump opening looks like this. There is a cover over the tank opening which varies, on some models a special key is needed, on mine it was a metal cover which I could punch open with a screw driver.

Brendan W · Dec 19th, 2015, 18:45

This thread has a few useful pointers.
http://www.volvoforums.org.uk/showth...fuel+pump+pick

Dec 18th, 2015, 09:39	#1
884ANDY New Member Last Online: Dec 24th, 2015 12:21 Join Date: Oct 2015 Location: Babcary	S60 2ltr petrol 2003 automatic fuel gauge misread Morning all. Not really a problem, more of a niggle but the fuel gauge on the dash gives a misreading. Basically when the car is empty of fuel it shows quarter of a tank left on the needle and when I totally fill the tank up it stays at the full mark for quite a while then slowly drops down. I brought the car like this and the previous own said that the quarter tank mark was when to fill up as he had not got round to getting it fixed. As I say not really a problem but I do like my cars to work correct. Am I correct in thinking first port of call would be to replace the fuel sender sensors under the rear seats. Many thanks for any help.

Dec 18th, 2015, 15:28	#3
884ANDY New Member Last Online: Dec 24th, 2015 12:21 Join Date: Oct 2015 Location: Babcary	Anything to look out for Hi there, many thanks for your help earlier. Is there anything in particular I should be looking out for on the tank transfer. I have not looked at it on the car yet, just trying to go in with as much info as I can. Many thanks Andy

Dec 18th, 2015, 16:47	#4
oragex Premier Member Last Online: Jul 26th, 2021 21:24 Join Date: Jun 2013 Location: Coldnada	If the above checks fine, you may check if the sender unit moves easily. In a car with the metal tank model, it looks like this. The pump opening looks like this. There is a cover over the tank opening which varies, on some models a special key is needed, on mine it was a metal cover which I could punch open with a screw driver. __________________ Several Volvo Repair Videos https://www.youtube.com/playlist?lis...ECTts0FSVSOT_c

Dec 18th, 2015, 10:09	#2
Brendan W Premier Member Last Online: Jun 10th, 2024 09:51 Join Date: Dec 2007 Location: Wexford	Close. You first port of call would be to check out the transfer plumbing between the tank 'saddles' . If it's not working properly there can be lots of fuel on the side the pump isn't. This is a very common issue and many owners treat 1/4 as empty as it can be, effectively. Some cars will refuse to start at or below 1/4 unless pointing uphill or downhill etc etc.

Dec 19th, 2015, 18:45	#5
Brendan W Premier Member Last Online: Jun 10th, 2024 09:51 Join Date: Dec 2007 Location: Wexford	This thread has a few useful pointers. http://www.volvoforums.org.uk/showth...fuel+pump+pick

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