by GUTLES » February 8th, 2013, 9:31 pm
I had the same problem a few weeks ago. It could be your heater core or there's a pipe that runs around the firewall above the trans, most likely that.
I was lucky mine was a LPG coolant hose had rubbed through at the back of the head.

'04 BA XR8 - Winter White, 5 Speed Manual, 20's, Yella Terra CAI, Bluepower Custom Tune, Difilippo Extractors, etc - 241.4 rwkw
'07 BF Mk2 - Winter White Egas Wagon, 6 Seater.
'02 AU3 XR6 - Liquid Silver, Manual, Sunroof, Momo Steering Wheel/Knob, LPG, BA GTP's & Rebel Kit.