I bypassed my leaking heater core on my '99 Ram 1500 a few years ago -- runs fine. Awhile back I noticed my passenger floorboard is soaked with water after using the AC ... OK, so I use my AC/defroster less frequently. But I notice now, when I move my truck after not starting it for a few days when I drive off a stream of watery fluid follows behind me for about 8-10 yards until there is none left. I thought for awhile it was rain water leaking from my bed, but I noticed the fluid flows in a funnel shape behind me that starts at about the place under the truck where the back of the engine/dash is. My coolant level never drops below normal and I never have puddles or leaks under the truck -- I also changed my waterpump a couple of years ago. Any ideas???

 

Has it been raining a lot where you live?

 

It has rained some, but I am not sure where the fluid is being trapped and why it only spews behind me as I drive off and not why the truck is idling.

 

Could it be condensation from the exhaust ?.

 

look on the firewall, passenger side, down low, below the pcm and see the 5/8 inch tube that sticks out about 1/2 inch. that's the drain from the AC/defroster condensation pan.

it might be coming from that. and if you are parked with the front end up, its not able to drain.

you can gently poke a wire or long zip tie into the tube to clean out any mold buildup or insect or other debris.

 

Thanks for the suggestion, guys! I will check the condensation drain pan. I'm sure the fluid leak is related to the leak on the passenger side floorboard.