MBjzz30

I have a 95 sc300 5 speed and when I run my A/C for about 20 to 30 minutes it will form a puddle of water in the passenger footwell. The water is coming from up under the dashboard. I ran the A/C diagnostic and it gave me codes 21 (Solar Sensor Circuit) and 43 (Air Outlet Door Position Sensor Circuit). Could it be possible for these to cause so much water. It is water its clear and no smell and taste like nothing.

SChema

iTrader: (2)

Do you notice water droplets underneath the car as well? If not, then the drain from the evaporator core may be clogged causing water the drain into the car.

MBjzz30

No I haven't seen any water from under the car so its a possibility, but what about the code 43 would this have anything to do with it.

jhill20

iTrader: (1)

This is ur problem. Find the hvac box drain tube on the firewall or towards the bottom of the vehicle in that area of the passenger side of the car. And try to unclog it.
No the code would be completely unrelated.

MBjzz30

Awesome thanks so much ill give that a try.

SChema

iTrader: (2)

Use a metal coat hanger. Don't go crazy with it though, light pressure should be more than enough.

jhill20

iTrader: (1)

yes exactly, don't go too crazy! best of luck.

MBjzz30

It worked i couldnt get a hanger in there very well i was afraid of tearing the hose so i just hooked up my blow gun to it and lightly blew air in and when i pulled the blow gun away it poured alot of water out.

tftimm

I'm having this problem, but I can't find the hose. I can't get too far under to see beyond the large empty spot, but I don't see the hose there. Is it closer to the center of the car? Anyone have a picture of where this hose is?

lex92sc300

iTrader: (3)

see in this photo on passenger side at the bottom there is a hose hanging off fire wall by that cable this is the hose you are looking for

tftimm

I'll take a look, so the hose just hangs off? I'll be taking look at it tonight...

lex92sc300

iTrader: (3)

That lill black rubber hose sticking out on pasenger side low