: Need Vacuum Hose diagram

09-13-04, 08:47 PM
I removed the upper and lower intake manifolds to change the wires on the 1998 Catera and now have a vaccum line that I can't find a port for. The line appears to attatch to the lower driver's side of the transmission or engine. I checked it with a small vaccum pump and I think it attaches to a diaphram/actuator of some sort. The local Cadillac Dealership said they couldn't help and I am trying to get out of buying a service manual for this seemly simple problem.
Any help would be very welcome. Thanks.

11-23-05, 07:41 PM

04-22-06, 01:42 PM
did you ever find where it goes? I have the same problem.

Marks DTM Calib
01-12-07, 09:06 AM
Have a look here:


Remember that there is a largeish breather from the auto box that resides at the rear of the engine and vents to atmosphere....