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Fuel in plastic tube on top of fuel pump?

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
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rocketman4321
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rocketman4321

Fuel in plastic tube on top of fuel pump?

Post by rocketman4321 » Sat Sep 24, 2016 7:00 pm

I've still/again got the gas smell on fill-up. Replaced the vent hose, filler neck rubber part, and re-potted the little area where the electrical wires enter the top of the pump. The dried trail of gas clearly leads to the pump area, but sort of fades away before it gets there, so I can't say 100% it's in the pump area, but likely. Today I found a bit of gas in the vertical plastic tube stub that stands on the fuel pump top next to the hose connections. What is this and why is it there? I pushed a wire in, but it doesn't seem to go into the pump. How is it getting gas in it? Even if the pump gasket was leaking, how does it put gas in this tube?
Thanks!

cn90
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Re: Fuel in plastic tube on top of fuel pump?

Post by cn90 » Sat Sep 24, 2016 7:07 pm

Your problem was described in this thread:

Gas leaking from top of new fuel pump. Yikes!
http://matthewsvolvosite.com/forums/vie ... hp?t=25603

Volvo_850_fuelpumpleak.jpg
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2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

Ozark Lee
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Re: Fuel in plastic tube on top of fuel pump?

Post by Ozark Lee » Sat Sep 24, 2016 8:18 pm

I had one that got some crud on the O ring in the quick connect and the supply line leaked. I removed the connector again, cleaned it with a Q tip, and reseated the connector and the leak stopped.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

rocketman4321
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rocketman4321

Re: Fuel in plastic tube on top of fuel pump?

Post by rocketman4321 » Sun Sep 25, 2016 8:36 pm

Thanks! I saw that post you link, but hadn't seen the top of the pump wet, so I didn't think it applied to me. Today I caught it in the act, so I'll re-seat the connectors and see if that cures it. Fortunately, mine was nowhere near as bad as the picture in the link!

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