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Fuel line check valve

Help, Advice, Owners' Discussion and DIY Tutorials on the third generation Volvo V70 wagon and XC70 crossover, and second generation S80. Are you an owner? Prospective owner? Get in here and join us! Start a new topic or comment on an existing thread.

2008-2016 V70
2008-2016 XC70
2007-2016 S80

kjhiggins
Posts: 38
Joined: Wed Sep 02, 2009 2:14 pm
Year and Model: 2010 XC70; 2006 S40
Location: Boston
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kjhiggins

Fuel line check valve

Post by kjhiggins » Tue Nov 05, 2019 5:14 pm

I've seen this issue discussed a couple times before here and I've asked this on other forums without getting any help so I thought I'd try asking it here. I'm having the hard cold start issue (see viewtopic.php?f=31&t=80013) indicative of a failed fuel pump check valve. I don't see any other issues with the fuel pump so I don't want to go to the expense or hassle of replacing it without exploring other options. I know older V70 and XC70s have this issue and it was fairly straightforward to put a fuel line check valve in the line near the fuel filter by the tank. Has anyone tried this on a P3 vehicle? I haven't gotten under the car to poke around for a good place to install a check valve and I haven't seen any good diagrams or pictures of the routing of the fuel line so I don't even know if this is possible. Any advice or guidance would be helpful and appreciated. Thanks!


2010 XC70 T6 180k; 2006 S40 T5 AWD M66 230k; 2004 XC70 280k; 1998 V70 288k (sold); 1970 Dodge Super Bee 383 Magnum 122k