My 91 honda accord is leaking antifreeze underneath by the right front passenger side dont know where it is leaking from?

classiic HVAC failure? LHD left hand drive car , no country told.
own for how long, 2years or 1day/ or what ( right passenger door?) for rain. ingress.
you said water, well that can be clean pure water
from RAIN or HVAC evap condensate,
using AC cool or heat + defrost mode? or just pure heat mode?
I do not know what you do there
i tray to capture water,in jar,and see if it is green or yellow or pink
that is AF antifreeze,
and put my fingers in it and rub fingers to thumb and it feels very very slippery, that is AF. not water
if i sniff it and smells sweet it is AF>
(3 ways to discover AF antifreeze)
ok it's water, so dont use AC or Defrost mode.
so that be RAIN or defrost condensart
sorry i could never even guess the water gravity effects from any car made from fire wall to rear of care, gee hills even change that.
learn to do deeper inspection of all carpets there.

bad door gasket
or last drove car with say a bandanna hanging out the door.
a 1 time event,nobody can guess ever.
and allowed rain to go inside any car.
or windows were not fully up.

id bet it not water, but green antifreeze , am i right?



or are you in key west runining, pure water in the engine cooling system. hell, i dont know.



colors vary today, green, pink,org. yellow, red.

i run prestone extended in all mine, now, yellow.

so looks like pee, but smells yucky sweet and is toxic.



if not AF (antifreeze) then it must (2 of 3)

condensate, run heater with no defrost, water gone

yes then is condesnsate , that means the condesate hose is packed up,super easy fix, get under car, and run coat hanger up drain tube to clear out the nasty fungus,

answer 3, sigh

the water leaking to cowl vents that are full leaves and then overflowing clogged cowl vents and spilling down to , you guessed

it he heater core air.or A/C core. area. and the drain clogged too. as per above../

You know I've experienced some pretty weird things that stomped me. I had a small pin like hole in my heater core..It leaked out of a small rubber hose on the right side (Passenger side) which is about where you said it was leaking...It was such a small leak that the water in radiator wasn't low...Put you finger in the liquid your leaking then smell it...If it smells like antifreeze this might be the problem. Its hard to see color from such a small leak...The other thing it could be is that your windshield water drains are clogged up...A lot of people park there cars outside were leaves and pine straw clogg up the drain some...So after it rains or car wash the water will gather and only drip out slowly...And there are two drains one the driver and passenger sides of your car...And it drains from a little rubber hose...You can get under car with a long nail to get it draining again...or take the medal plate off under windshield to get all the leaves or pine straw out...Its not hard to do....Just another two problems to check.....Hope this helps..

Hello lwoodzee,

The ECM is under the carpet on the passengers side of the car. See image below and directions for removal.





I hope this helps.

Regards,

Jerry

When standing on the passenger side looking at the distributor you will see a sideways square ( shape of spark plugs counterclockwise a little ) firing order is this 1 is top left, 2 is top right, 3 is bottom left, 4 is botton right, Now from the same side distributor closest too you, firing order is 4321 going towards drivers side match em up and done.

most common problem is the a/c condensor tube is clogged and is under the car and needs to be cleared with compressed air. also the sunroof track has 4 drain tubes and the right front may be clogged or leaking. you can check that by pouring a cup of water down the right front drain tube in the sunroof track and see if water comes out by the right front wheel

if you have a puddle of water on your floorboard and you dont know where its coming from that would most likely be your problem because the same thing happened to my cavalier and i had to replace it its in the plastic shroud behind the middle console towards the bottom and the 2 heater core hoses you can see if you pop your hood and look behind the motor around the area where your rack and pinion is they arent hard 2 miss theyre 2 small hoses right next to each other and theyre easier to get off from underneath the car

is the check engine light on? if so,retrieve the code,to help point you in the right direction.check for vaccum leaks,if no light is on check obd ecm fuse maybe its burnt out ,and the light is on and you dont know it ,90 % of troubleshooting is observation,start the car open the hood and just look and listen,follow your wire harnesses,check all the connectors,listen for air leaks,observe fluid leaks you can also .check at night when is pitch black,to see wiring shorts and bad connections you dont notice in the daytime

the ECU is located on the passenger side floorboard underneath the consold and carpet

I've had similar problems and had to have the water pump replaced.