In my engine bay on the right side there's a rubber vaccuum hose poking through a grommet in the firewall down near the exhaust manifold. I've had it plugged for so long I forget what the hell it is exactly. Reason I'm wondering now is because in troubleshooting an idle problem I just noticed a stain of gas or antifreeze running from that port down the firewall. Think it might have happened last night when I was mega cranking a new carb and flooded it. Whatever the case I'd love to know how gas got in that particular port.
a pic might help better
Right side as in driver or pass side?
How low on the firewall?
It sounds like a drain tube for the heater box.
Passenger side. Down around my header collector.
The heater has a drain tube?
Yup. This is where the water comes out when the A/C is on as well. If this ever gets clogged, you get a cold water bath when you turn. Ask me how I know. :D
If there is coolant coming out this hole, I'm 99% sure the heater core has a leak.
Dang.
Yup....that's what I was going to get to.
Not sure why you had it plugged...I guess if you had working AC you would have found out about what it was sooner. :p
I didn't have it plugged, it was clogged with dirt and leftovers from a previous core change I guess. And yeah, I didn't figure it out until I got the A/C charged, lol.
When I bought the car the emissions junk was half removed with ss here and there. I think there was actually a line running from that port to a cylindrical thing that I also ended up removing....lol.