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EVAP hoses schematic -- simple

Help, Advice, Owners' Discussion and DIY Tutorials on all Volvo's "mid era" rear wheel drive Volvos.

1975 - 1993 240
1983 - 1992 740
1982 - 1991 760
1986 - 1991 780
1990 - 1998 940
1990 - 1998 960
1997 - 1998 V90/S90

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Joined: Sun Mar 10, 2019 9:20 am
Year and Model: 1991 740
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EVAP hoses schematic -- simple

Post by murfboroman » Sun Mar 10, 2019 9:25 am

Hi -- got a 1991 740. Can't pass emissions due to high hydrocarbons. I found a broken vacuum line going to a turbo gauge, so I'm going to replace that regardless, but in the meantime I'm looking at the EVAP canister hoses. I can see vacuum lines connecting to the top of it, but while poking around there's a large rubber hose coming off the BOTTOM that is open ended. I'm just looking for -- if anyone has it -- a breakdown of the "hookup" for this EVAP canister. Is that open-ended (large) rubber hose on the bottom some kind of "vent"? Surely not. It LOOKS as if it has been torn or ruptured -- the end is not "flush", if that makes sense. What does it/what is it supposed to "connect" to? Thanks in advance.