Hi, I have a 67 442 convertible and my trunk release stopped releasing. It's vacuum operated with a button in the glovebox to actuate it.
Is there any circuit diagrams for this, i've looked in my manuals and see nothing. It was working a few weeks ago but stoipped.
Thanks
Dave

 

Did you check to make sure you have vacuum at the glove box and at the actuator on the deck lid.
The system is very simple, vacuum hose from engine to vacuum canister, hose from canister to glove box switch and hose from glove box to trunk.
here is a picture of the routing, it's in section 15 of the chassis service manual

 

Thanks, I looked for that and could not find it. I'll check it out!!

Dave

 

It's really not much of a "circuit". The actuator at the trunk latch has a piston that pulls the latch when vacuum is applied. There's a hose that runs to the button in the glovebox, which is a normally-closed valve that opens when you press it. Opening that valve connects the hose from the trunk actuator to engine vacuum. The vacuum ball is simply a storage space so the release works once after the engine is turned off.

 

Thanks, got it fixed.