Drain Tube at fire wall on Passenger side. on 2000 Jeep Wrangler

I understand that this is a overflow/drain tube for the A/C, but I go throught alot of coolant because it drain out of this tube. what would cause this?

by in Happy Valley, OR on March 08, 2014
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2 answers 1 comment
ANSWER by , March 08, 2014
Heater core is leaking.
ANSWER by , March 08, 2014
Must be pressurizing , no ??,probably system building up pressure..
COMMENT by , March 08, 2014
Could that be caused by having the wrong radiator cap.