View Full Version : Mystery hose after pulling engine? Located inside the firewall run with heater hoses?

Blue AWD
02-20-2013, 06:48 AM
The firewall that is run through the same grommet that both coolant to heater core hoses run through as well. It's about a 1/4" hose with a 90 degree nipple on the top end. It's not connected to anything and I was wondering if it should be? It looks like it should be attached to the brake master cylinder. Thanks.

02-20-2013, 07:01 AM
This thread needs pics. But yeah, sounds like the vacuum line to the brake booster.

Blue AWD
02-20-2013, 07:41 AM
Ok I'll snap some when I get home. It's not the brake booster. It's a clear/yellowish line.

02-20-2013, 07:51 AM
Clear yellowish? Battery vent?

Blue AWD
02-20-2013, 07:57 AM
Yea that is probably it. Thanks man.