Hose leak on lower bulkhead

Go to the radiator and look for a hose either on top going to the overflow to the bottle or at the bottom hose look for a tee fitting with the hose going to the bottle it's a white plastic bottle search your van for 2002 ford transit overflow tank and you'll see it ok

You say the hose is perfect but I'm not convinced. Check that the bit that the hose fits on is not blocked into the housing as all sorts of gunk gets into the a/c box.. Pull the hose off and see if there is a blockage at that point.

The water drip is quite normal, it is the moisture in the air that has frozen onto you evaporator coils and is now melting. It shows that your aircon is working. Look around shopping mall parking places, you will often see these little pools of water.

if its still leaking when its not raining check the fluid, if it smells slightly or is coloured it could be radiator coolant, your heater in the car uses the cooling system from your radiator the hoses come into the dash into the heater box, it could simply be the heater box has sprung a leak and is leaking into your car. you would need to take dash apart to get to it. might pay to check levels in radiator aswell, if its happening when its raining only or when water is coming from outside it could be the aircon vents at the bottom of the windshield check to see if there are leaves clogging it up remove and poor water in to check if its done. clogged vents cause overflowing into your system.

look the clips are tighten and be sure your hose are in good condition

DO NOT RUN THE CAR WITH NO WATER,water has to be present in the reservoir to enable the output of heat from the heaters. switch the engine off put water in the reservoir/antifreeze look at the bottom of your engine, see if there is a leak, ifnot fill water on to correct level, close cap, turn engine on, check for leak under the engine, if not when engine reaches optimum temperature, your car should give out heat. after an hour check level of water in reservoir. if it has totally depleted or decreased by a significant amount then, go straight to the mechanic and tell him your observations, it could be your HEAD GASKET, if it is then start saving

Ok, Its defiantly the seal that is between the water pump and the engine block that is leaking the coolant.

aircon vent at bottom of windshield it may be clogged with leaves or debree causing water to overflow into your aircon intake system,.

First, plastic tube may be the overflow vent from the coolant bottle.Check to see where the attached end goes. You are going to have to check engine for coolant leaks (carefully refill system without spilling anything, then look for dripping anywhere. Look for leaks from all hoses, fittings radiator, water pump etc) After checking for leaks, start it up and check again (watch where you put your hands though) While running, check that the fan comes on when the vehicle reaches operating temp.(no fan, check fan motor, sensor & relay) Turn the heat on (does it have heat?) Check temp of lower hose and upper hose. If overheat happens, is lower hose still cold? (likely bad thermostat). If you found a leak, replace whatever is leaking...best insurance is to change thermostat after any overheat. Last, is there any white smoke from tailpipe, does engine run rough? If so, could be a failed head gasket or crack in cylinder head. (at this point last thing to worry about unless there is excessive smoke or rough run or oil in radiator or coolant in oil).

hi from uk a common problem with leaks into foot wells are as rain runs down w/screen and inti the bulkhead area below w/screen accesable with bonnet open ? this water runs to either side to a drain hole and onto road via a rubber hose attached to these drains the bottom of hoses are flat so as to let water flow out but not inwards ok so far ?? now leaves and dust etc are sometimes carried to these drains resulting in eventual clogging at bottom and top of hoses so water collects in pools eventually finding its way into car ? take a look at these and ensure hoses are clear ??