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T-Cut · 23rd June 2019, 15:32

The levels in each side of the tank are normally balanced by the in-tank venturi pumps. See this for details: https://www.the75andztclub.co.uk/for...d.php?t=108535

I can't see how long term evaporation would reduce one side more than the other.
Anyway, add a gallon of fresh juice to eliminate that from the equation. The pump should run whatever the fuel level. I don't think it's clever enough to react to levels. You might check the continuity of power through the motor. Remove the right side tank hatch cover and you'll see the pump/floats system connector. Pull the plug off and use an ohm meter on the appropriate pins (2 & 5) to check that the resistance is OK. If it's open circuit or a vastly different reading from that shown below, then the pump should be replaced.

You might also confirm that power actually reaches Pin 4 when the relay activates.

TC

23rd June 2019, 15:32	#5
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	The levels in each side of the tank are normally balanced by the in-tank venturi pumps. See this for details: https://www.the75andztclub.co.uk/for...d.php?t=108535 I can't see how long term evaporation would reduce one side more than the other. Anyway, add a gallon of fresh juice to eliminate that from the equation. The pump should run whatever the fuel level. I don't think it's clever enough to react to levels. You might check the continuity of power through the motor. Remove the right side tank hatch cover and you'll see the pump/floats system connector. Pull the plug off and use an ohm meter on the appropriate pins (2 & 5) to check that the resistance is OK. If it's open circuit or a vastly different reading from that shown below, then the pump should be replaced. You might also confirm that power actually reaches Pin 4 when the relay activates. TC Last edited by T-Cut; 23rd June 2019 at 15:35..