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Honda Accord Porous Engine Block Casting May Cause Engine Oil Leaks

 
Honda Accord Problem
56 Reports
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Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003

Engines Affected: 2.3L 4 Cylinder, 2.4L 4 Cylinder, 3.0L V6

Average Mileage: 149,536 mi (21,000 mi - 292,000 mi)

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The engine may develop and oil leak due to a porous engine block casting. The repair procedure is dependent on where the leak is located. Honda has released a service bulletin covering model years 1998-2003. Honda may offer assistance with repairs, determined on a case by case basis.

  • Visitor, , 2.3L 4 Cylinder, 145,000 mi

    I have had this Honda Accord now for a year and a half, with no problems, never overheated, excellent mileage etc. and 3 weeks ago I discovered a substance resembling molasses in the coolant expansion reservoir, then I opened the radiator cap and discovered more of that substance in the radiator, checked the engine oil level and it dropped closer to the lower dot. I always ensure that the oil level is between the 2 dots

    The engine oil is super clean no trace of any coolant, so I am assuming there is a crack in the engine. I constantly monitor the engine oil level and top it off as needed ( approx 1 quart per 1000 kilometers), and I also empty out the expansion bottle into a waste oil container once a week and fill it with fresh coolant .
    The upper radiator hose was also replaced because it started to deteriorate.

    I am not sure what to do to fix the problem, other than replace the engine, what other solution is there ?

    thanks
    Carlos

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  • Visitor, , 3.0L V6, 140,000 mi

    I was told by the Honda dealer that my Honda has a porous block and the only way to fix it is to replace the engine with a used engine because they can not get a new engine. How do I know the used engine will not have a porous block?

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  • Traveler Dean, , 2.3L 4 Cylinder, 84,000 mi
     Rookie

    We just got this car and now, we have oil in the cooling system. I was told I have a "porous" engine block and need to replace the engine. Also, the check engine light is on and I was told that I may need to replace the computer.
    I was told "this is a problem car".
    This is all adding up to close to $4,000!
    I am wondering should I keep this car or trade it for something without so many problems?

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  • Visitor, , 3.0L V6, 64,000 mi

    I just recent noticed oil leak on my Honda 2003 Accord Ex V6. I was told by Honda service team that they were not 100% sure until they have to remove the transmission to determine the cause for sure.

    With 64K miles and good maintenance record from Honda service. I was told that could be cause by engine block which may cause 5-6k to replace the engine.

    I am kind disappointed with the news, but that was my bad luck then...

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  • Visitor, , 2.3L 4 Cylinder, 190,000 mi

    Replaced head gasket. Still find oil in radiator. Must be a leak in the block. I wish Honda would admit the problem so there could be a diagnostic. A lot of people have wasted a lot of repair money on a design flaw that has no fix.

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  • Visitor, , 2.3L 4 Cylinder, 65,000 mi

    Has not been fixed, cannot find where leak is. Oil all underside of engine. Leaks pretty bad.

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  • Visitor, , 2.3L 4 Cylinder, 200,000 mi

    Have had to replace head along with heater core and have to flush out oil in cooling system. Quite frustrating. I certainly would not re-sale this car for more than 500 to 1000 dollars. Bought it for around 4000 a few years ago. I don't think as highly of Honda as I used to. Will just have to keep flushing it out until we find another vehicle that is dependable.

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  • Visitor, , 2.3L 4 Cylinder, 21,000 mi

    oil started to leak into the coolant. The leakage is getting worse with time

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  • Visitor, , 2.3L 4 Cylinder, 135,000 mi

    Oil in coolant; head gasket is fine; will require new block.

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  • Visitor, , 2.3L 4 Cylinder, 116,000 mi

    Told by dealer that engine has bad / porous casting that lets engine oil and coolant mix once the engine heats up. Repair costs ~4000

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