The sound of water swishing about under the hood - sometimes the water actually comes through the side of the glove box. I think the water is not draining from the area below the windscreen - should this area have a drain hole? if so where?

it should be in the A/C Heater box held in by two screws and it has 3 and sometimes 4 wires pluged into it it's looks flat with the wires in the middle of it, sometimes it's under the hood and sometimes under the dash on the passenger side, you might have to remove the glove box to get to it

i'm thinking this leak may actually be caused by a rusted out spot or hole on the hood of the vehilce, or by the windshield seal coming loose allowing water to enter..

if the cars antenna is above that area where the leak is it can also come from that..

basically it will enter the hood, run down the sides and gather on the floor under the glove compartment...

you said its only when its raining right ?? so its definitely a leak.

IF IT WAS HAPPENING ALL THE TIME WATER IN THE PASSENGER FLOOR I WOULD HAVE HEATER CORE CHECKED BUT ONLY WHEN RAINS YOU HAVE A SEAL MISSING UNDER HOOD AGAINST FIRE WALL
SOME TIMES YOU CAN BUY REPLACEMENT ONES AT ADVANCE OR AUTOZONE BUT 2000 MODEL NOT SURE

unblock the ac drain hose at the ac box or under the car

are you having problems with heat??? is the windshield fogging up from the inside?? if not the core is probably ok. may be as simple as water got in under the hood in that area. it all depends on who does the work. it can be anywhere from $200 - $500.

Yes it can,there is a drain for the ac box,on the outside under the firewall,that is stopped up,use a small weak wire to unclog it or air pressure.

under the dash pas inger side

look under hood on the fire wall on the side of the leak see if you can see where it is coming in

The motor is located just under the glove box on the passenger side. I remove the glove box then the panel below the glove box. I also go ahead and pull back the carpet and the padding under the motor. It is held in place by 3-4 bolts that take a 7-8 millimeter socket. I use a swivel extension for the back bolts. The motor with the fan blade attached is a tight fit, just keep wiggling and pulling it should come out. Try to remove the old moter without cracking the fan blade, because sometimes the replacement motor doesn't come with a blade

Check if your fan is running