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XC70 Vacuum leak/ smoke test

Help, Advice, Owners' Discussion and DIY Tutorials on the current (third) generation Volvo V70 wagon and XC70 crossover, and second generation S80.

This is a forum for owners or prospective owners of the third generation V70, second generation S80, and its siblings built on the EUCD platform.
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Year and Model: 2008 xc70
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XC70 Vacuum leak/ smoke test

Post by sjk5539 » Mon Oct 08, 2018 10:34 am


My 2008 xc70 got a p0442 (small EVAP leak) code and I am trying to smoke test to see where the leak is.
However, I can't figure out which hoses are vacuum lines and where the purge solenoid is.
I think I can use this line (picture attached) that is connected to the coolant reservoir...
Does anyone know where to introduce smoke?


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Re: XC70 Vacuum leak/ smoke test

Post by pgill » Fri Oct 12, 2018 12:52 pm

The line you identified is full of coolant

The line that you are looking for is shown below
fuel_vapor_line.jpg (84.81 KiB) Viewed 245 times
Good Luck Paul
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