a/c vents close under boost

[glenn c]

I forgot which vacuum hoses operate the a/c vents...need to look for a leak.

thanx,

 

[scottyb]

There's a check valve on the vac line behind/near/between the fuel pressure regulator and the EGR valve.

 

[glenn c]

I replaced it last year ...maybe it's bad again, thanx.

 

[dadmomcat]

check valve

Any one know the part number of this check valve ??? Would any of the Pep boys, Auto Zone know what you are talking about if you ask them for a replacement ???

Thanks