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360beast · Feb 28th, 2021, 17:32

1986 360 B200E LE jetronic.

It has been sat without any fuel for about 9 years, I have started it every now and then and out a jerry can of fuel in it here and there. When I got it out this time though the fuel pump was very noisy and the fuel gauge had stopped working. It lasted 220 miles before it starting stalling, I assumed it was the fuel pump fuel to the noise it is making and the fact it was shuddering and losing power in time with the noise of the fuel pump.

I have changed the pre pump filter as it was clogged with rust, swapped the fuel pump but no difference and the brand new pump after about 5 minutes started making the same noise as the old pump, I could hear the noise (sounds like a pump struggling) in the engine bay too and heard it was coming from the fuel filter there, so I've just fitted a genuine volvo fuel filter (old one also contained a lot of rust and sediment) so I cranked it with no filter on and drained the fuel in to a tub to make sure it was coming through clear. It was fine for about 20 seconds then the noise came back but not quite as loud as before. I took it up the road and it judders every now and then, full throttle just doesn't work it is like a slow crawl up to 30mph but if I back off a bit it accelerates better. The noise of the pump varies in pitch and loudness but occasionally it will go quiet and that is when it is at its worst and loses power completely.

I've checked the auxiliary fusebox and the connections are in perfect condition, the fog light and fuel pump fuses both measured 64 ohms of resistance. I swapped the relay for the Hella grille and the fuel pump around, no difference and the spot lights didn't do anything weird so I can rule out the relay.

I've tried another used crank sensor that I know is fine but no difference there either.

Anyone got any ideas?

Feb 28th, 2021, 17:32	#1
360beast Go redblock or go home Last Online: Today 13:45 Join Date: Feb 2012 Location: UK	360 fueling issue 1986 360 B200E LE jetronic. It has been sat without any fuel for about 9 years, I have started it every now and then and out a jerry can of fuel in it here and there. When I got it out this time though the fuel pump was very noisy and the fuel gauge had stopped working. It lasted 220 miles before it starting stalling, I assumed it was the fuel pump fuel to the noise it is making and the fact it was shuddering and losing power in time with the noise of the fuel pump. I have changed the pre pump filter as it was clogged with rust, swapped the fuel pump but no difference and the brand new pump after about 5 minutes started making the same noise as the old pump, I could hear the noise (sounds like a pump struggling) in the engine bay too and heard it was coming from the fuel filter there, so I've just fitted a genuine volvo fuel filter (old one also contained a lot of rust and sediment) so I cranked it with no filter on and drained the fuel in to a tub to make sure it was coming through clear. It was fine for about 20 seconds then the noise came back but not quite as loud as before. I took it up the road and it judders every now and then, full throttle just doesn't work it is like a slow crawl up to 30mph but if I back off a bit it accelerates better. The noise of the pump varies in pitch and loudness but occasionally it will go quiet and that is when it is at its worst and loses power completely. I've checked the auxiliary fusebox and the connections are in perfect condition, the fog light and fuel pump fuses both measured 64 ohms of resistance. I swapped the relay for the Hella grille and the fuel pump around, no difference and the spot lights didn't do anything weird so I can rule out the relay. I've tried another used crank sensor that I know is fine but no difference there either. Anyone got any ideas?