I was giving one last look to the engine bay before trying to reinstall the engine, and notice a small hose that ran across the width of the engine bay hanging slightly loose. I grabbed it to push it back up and it snapped right in my hand. The rubber had turned to brittle. When I traced the hose upwards, I found it was connected to nothing, and looked like it hadn't been for a while. When I traced it down, it ran by the driver's side heater vent hose, and then back into the body at the transmission tunnel. Anybody know what this was/is? The car is a 1974 with an 83 SC engine in it. No cats, and no O2 sensor, in case that sheds any light on it.
Where it snapped at
Following it around the heater vent
Bound to the body
Into the transmission tunnel
