Heater box "Source" vacume connection. Where to?

[sixsixvette]

1969 GTX with AC. Need help finding connection point for vacume line. Line 6 from the control connector is listed in book as "Source". Im guessing that it needs to connect somehow to the vacume canister in engine bay. But how does it get routed there?

 

[davek]

You might find the info here. MyMopar

 

[davek]

this is my 70 dont know if it helps any. Are you asking were does it come out of the firewall?

 

[davek]

service manual on this page Service Manuals – MyMopar

 

[snakeoil24]

Find a hole in firewall connect to manifold vacuum

 

[sixsixvette]

Thanks. Checked out service manual and it did not seem to give specifics on getting through firewall. The pics above seem to show it coming through the control valve firewall mount. My valve does not have that style (see my pic below). The service manual does call out a hole next to the bottom screw on the fan motor (see pic below), but I don't see any way of getting the vacume line into that area of the heater box to utilize that hole. Yes, I could hack up my firewall and make a new hole, but want to do it as the factory did.

 

[LowBikeMike]

Here ya go.

 

[sixsixvette]

Here ya go.

View attachment 1864985

So just runs through a grommet next to control valve? Simple enough. Appreciate the photo!

 

[LowBikeMike]

Yep. Im going to add some aftermarket temp, oil pressure gauges and use the same grommet.