mystery coolant leak...

[DBeaty]

I have a 2003 Explorer 4.0L. I have coolant pouring out of a short square tube, above the trans fluid pan coming from, i assume, the floor board, while running. the floor inside is dry, but when the heater is turned on, it blasts hot humid coolant vapor from the vents for a moment then calms down. It doesnt matter if the A/C or heater is on or off for the coolant to leak from this tube. It has 176,000mi. a new water pump as of yesterday. and a new trans as of 1 year ago. any help would be GREATLY appreciated!!!

 

[Turdle]

I think the heater core in your truck is leaking.
This thread should help



http://www.explorerforum.com/forums/index.php?threads/heater-core-replacement.421674/