2001 V70 Missing Vacuum Line between Fusebox and Air Filter

106 Miles 2 Chicago · Post by **106 Miles 2 Chicago** » 06 Apr 2023, 13:02

I found the hose fitting on the aft side of the air filter box missing a elbow / line missing and just aft of that in front of the fusebox.
Is there an identification of what this line is and part number. What purpose does this missing line serve?
I could not find it.
Thanks.
106 Miles 2 Chicago

Post by **abscate** » 09 Apr 2023, 10:55

It’s part of the air filter box heated air system. Vacuum comes up to the air box to one of the two nipples, and the temperature of the air box meters the vacuum ftom the other nipple down to the flap that selects hot or cold air into the air filter box.

Those rubber nipples are available from Volvo or aftermarket

Post by **jonesg** » 09 Apr 2023, 14:14

abscate wrote: 09 Apr 2023, 10:55 It’s part of the air filter box heated air system. Vacuum comes up to the air box to one of the two nipples, and the temperature of the air box meters the vacuum ftom the other nipple down to the flap that selects hot or cold air into the air filter box.

Those rubber nipples are available from Volvo or aftermarket

might not be needed in texas heat.