S80 T6 Executive L6-2.8L Turbo VIN 90 B6284T (2001)
Ventilation.
Note:
The gauge should not be used to verify the cleaning of the crankcase ventilation hose and banjo fitting. The gauge reading may also be affected by
other conditions in the engine like a leaking oil filler cap gasket, and should only be used as an indication that further diagnosis should be performed.
Measuring pressure in the crankcase
6-cyl Non-turbo
Read the value on the gauge:
The value should read approximately 0.0
kPa.
Gently squeeze the hose between the "T"
fitting and the intake hose using a hose
clamp pliers similar to the ones shown in the
illustration.
Note:
Be careful not to close off the hose completely because this will damage the gauge.
If negative pressure can be seen on the
gauge the crankcase ventilation is clean and
no further work is needed.
If no or very little negative pressure is seen,
the crankcase ventilation is partially or fully
clogged and must be cleaned as described
in:
TNN 25-149-C, Cleaning the Crankcase
Ventilation.
Note:
The gauge should not be used to verify the cleaning of the crankcase ventilation hose. The gauge reading may also be affected by other conditions in
the engine like a leaking oil filler cap gasket, and should only be used as an indication that further diagnosis should be performed.
