Originally Posted by stevenrmusic

Am not home to give exact part#, yet the vacuum leak above the tranny on the 07 GTC was a single hose that was $300 (probably a $75 hose they overcharge you for at 'Bentley pricing' of course).

Originally Posted by PMS

Are you certain that you are referencing the vacuum leak above the transmission? When I removed the driver's side pre-cat, I had a very careful look into the issue and could not see any way to access the junction without removing the engine. I even explored coming in from the top under the shifter assembly (i.e. cutting through the floor). Ultimately, we all concluded this would be even more work than removing the engine/transmission. If your guy has a way to do this without the engine coming out, all of us would VERY much like to know the procedure.

Originally Posted by REDNOSEGT

hi peter, so basically to get to that t fitting it would be impossible?

Bentley GT vacuum leak & smoke test - YouTube

you can see the peice here

Bentley GT vacuum leak repair with new metal lines - YouTube

Originally Posted by PMS

After a lot of investigation, I believe the engine/transmission has to come out in order to get at the junction on top of the transmission. We have discussed lowering the assembly at the back, but logic says that, in order to prevent damage to the connections (hoses, wiring assemblies, etc.), everything would have to be disconnected and, if you go this far, you might as well drop the engine/transmission. If someone has another way of replacing this vacuum line, I'm sure we would all like to know.