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 year 2003. Honda may offer assistance with repairs, determined on a case by case basis.Google+
Car Problem Reports
Honda Pilot Porous Engine Block Casting May Cause Engine Oil Leaks
Honda Pilot Problem
Engine Affected: 3.5L V6
Average Mileage: 122,166 mi (95,000 mi - 180,000 mi)
Visitor, 2003 Honda Pilot, 3.5L V6, 180,000 mi
Had an oil leak. I put a bottle of "Blue Devil" and replaced my oil drain plug and no more leaks
Visitor, 2004 Honda Pilot, 3.5L V6, 134,000 mi
My Honda Pilot has started leaking oil and they cant determine exactly how to fix it.
Visitor, 2004 Honda Pilot, 3.5L V6, 105,000 mi
Not fixed, yet, but oil leak from under the timing cover attempted repair by reputable mechanic. Same oil leak. We've taken it in 3 times and so far no luck on repair.
Have the same problem. Suddenly started leaking oil, have not had it repaired yet. Should Honda be responsible for this issue?
Visitor, 2004 Honda Pilot, 3.5L V6
When I first purchased the Honda Pilot, there was a perpetual leak and smell of burning oil. The dealer at first said there was no problem, but with my persistence, found the block to be porous and they repaired.
oil leaking from the top side of the motor. used dye to track it, but still cant find the area that"s leaking, but still cant find the leak ??? Must be a Honda thing.
Porous engine block...have not yet contacted honda to see about the repair. I feel they should cover it as this is a basic manufacturing defect.
Visitor, 2004 Honda Pilot, 3.5L V6, 124,000 mi
leaking oil due to same