Hi...I replaced the radiator a week ago due to a leak. Just when I thought I got the problem fixed, I have new leak in a new location. The new coolant leak was first seen under the horizontal section of the exhaust pipe under the oil filter. This happens after the car has warmed up. By using a flash light and checking from the top, I couldn't see any places getting wet. But seems to be a little wet under the oil filter closer to the passenger side. So, I think the new radiator has keep the pressure up within the system and the next weakest link started to burst.
I already have the heater hoses changed and they are not leaking. The upper and lower radiator hoses are also new and they are not leaking. I know there are a few coolant hoses under the intake manifold. I have printed out the Honda manual page 10-2 but they are not really being well identified. Anyone changed the hoses there before? How many are they? What size of hoses do you use?
Thanks. - Alex
Ok. After the above posting. I went to get a mirror and look above and under the car trying to find where is leaking. First of all, all the hoses under the intake manifolds are dry !!! Very surprising !!! I literally touched every hose I can find under the intake and I didn't get any fluid on my finger. Nor the mirror review any wetness on every hoses. I only found trace of coolant on the bracket around the two bolts that hangs the horizontal section of the exhaust pipe under the oil pan. This was done within a 2 hours period so I wonder if the coolant will dry all up that fast. I also checked the drain bolt on the front of the engine block and it appears dry and there is no trace of fluid under it. The chilton's book say the drain bolt may be either at the front or above the oil filter. I couldn't find any drain bolt above the oil filter either. Also, the leak seems to be started AFTER the engine is shut off. I wonder if there is any sudden pressure change when the engine is from on to off state that cause the coolant bursts out.
So, I'm still very puzzle with this. I don't want to give up because I just put a new radiator in. I know many of you got more miles out of your 3g and I think mine can do better than 241k miles. Any help will be highly appreciated. Thanks. - Alex