2005 Honda Civic LEAKING

BROKEDOWN1

MEMBER
2005 HONDA CIVIC
4 CYL
2WD
AUTOMATIC
72,000 MILES

MY CIVIC IS USING WATER.I NOTICED THAT THE ONLY LEAK I HAVE IS FROM A HOSE UNDER THE CAR THAT PEOPLE SAY ITS A DRAIN FOR THE A/C.I DID A PRESSURE TEST AND IT LEAKED. WHY?

Saturday, June 5th, 2010 AT 2:44 PM

7 Replies

KHLOW2008

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41,815 POSTS

Hi BROKEDOWN1,

When pressure test was done, where is the leak showing?

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Sunday, June 6th, 2010 AT 3:46 AM

BROKEDOWN1

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4 POSTS

Yes it leaks from the drain house on back of the fire wall. Is that the ac drain

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Sunday, June 6th, 2010 AT 11:24 AM

KHLOW2008

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Yes, that should be the A/C drain hose.
Coolant would be colored whereas water from the A/C would be clear.

There is no reason for the cooling system to be leaking from there. Even if the heater core is leaking, it would not get to the evaporator housing.

Are you sure the coolant is leaking from the A/C drain hose during a pressure test?

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Monday, June 7th, 2010 AT 9:40 AM

BROKEDOWN1

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YES IT DID FOR SOME REASON. ITS USING WATER AND I DONT KNOW WHY.I CAN DRIVE FROM LONGVIEW, WA. TO LINCOLN CITY OREGON AND IT WILL USE A 1/4 GALLON OF WATER.I KNOW THATS NOT GOOD. I HAVE NO LOSS OF POWER AND THAT IS THE ONLY LEAK THAT I CAN SEE. AND WHEN I DID THE PRESSURE TEST IT DID LEAK FROM THE A/C DRAIN I DONT KNOW WHY. THERE IS NO WATER ON MY FLOOR BOARD AND THE OIL AND WATER LOOKS GOOD. IM BAFFLED.

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Monday, June 7th, 2010 AT 4:23 PM

KHLOW2008

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If that is the case, then you have to check the heaster core.

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Tuesday, June 8th, 2010 AT 8:40 AM

BROKEDOWN1

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The leak is clear not coolant I was wrong.I do thank you for your input.I just dont know why im going through so much water.I just replaced the rad. Cap so I will see what happens. Anything else you can thunk of?

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Tuesday, June 8th, 2010 AT 10:05 AM

KHLOW2008

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You mentioned doing a pressure test. If the pressure test failed, you should be able to detect where the leak is coming from.

When the recovery tank and radiator is losing coolant, then there is a leak somewhere.

If the recovery tank is overflowing whereas the radiator is loosing coolant, then you either have a bad radiator cap or a leak between the radiator and recovery tank with a worse case scenario of a bad head gasket.

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Tuesday, June 8th, 2010 AT 11:24 AM