Cross post from the XC90 forum. It's uh pretty quite over there. Anyway here's the situation.
"As part of my mini restoration I've been chasing a fuel tank leak. Ever since I replaced the fuel pump I have gas pooling on top of the fuel sender. Originally I did not change o-ring but since chasing the leak I have. I put a volvo brand o-ring, cleaned the sealing surface very well and greased the o-ring. I made sure the sending unit was seated all the way down before thread the lock ring. Arrow is pointed back and I've tightened the ring, a lot. After doing this job twice I went to fill up and noticed gas again but this time it coming from the top on the wired asymmetric raised plastic on top of the sending unit. Do I need to replace the sending unit at this point?"
P2 Fuel Sender Leak
- ZionXIX
- Posts: 1310
- Joined: 11 August 2014
- Year and Model: 1996 850 Turbo S/W
- Location: Texas
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P2 Fuel Sender Leak
Scarlett: 1996 850 Turbo Wagon in Reagent Red Pearl ~210K mi
Norman: 2012 F150 XLT Crew Cab in Oxford White ~110K mi
Ember: 2005 XC90 2.5T FWD in Ruby Red Metallic ~83K mi *Newest addition to the fleet*
Ruby: 1997 850 Turbo Wagon in Reagent Red Pearl - parts car
Rose: 2020 Ram 1500 in Delmonico Red Pearl - SWMBO's Vehicle
Norman: 2012 F150 XLT Crew Cab in Oxford White ~110K mi
Ember: 2005 XC90 2.5T FWD in Ruby Red Metallic ~83K mi *Newest addition to the fleet*
Ruby: 1997 850 Turbo Wagon in Reagent Red Pearl - parts car
Rose: 2020 Ram 1500 in Delmonico Red Pearl - SWMBO's Vehicle
-
scot850
- Posts: 14894
- Joined: 5 April 2010
- Year and Model: 2000 V70 R
- Location: Calgary, Alberta, Canada
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Looking at your picture above, if you look at the middle bottom of the picture on the raised portion, there is a crack in the casing. I would suggest this may well be the cause of your leak.
Neil.
Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold
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