There is a small diameter black rubber air hose protruding from the firewall directly above the brake booster. The hose is about 18” long and connects to another short hose (12”) that hangs from the hose rack on top of the fender. That hose is not connected to anything.
Any idea where it should connect?
On another issue that may be related, I washed the engine compartment before this happened and the turn signals stopped working.