Two problems related to engine head gasket failure have been reported for the 2003 Honda Odyssey. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Honda Odyssey based on all problems reported for the 2003 Odyssey.
Engine gasket failure. Noticed a small oil leak on the garage floor. We were told that a new head gasket was needed for $1,861. Got a call today and was told that the bolts in the engine were stripped (it has not been touched by anyone since manufacture) and that we can pay an additional $400 to have the bolts reseated or buy a used motor for $2,900. Neither seems fair. Transmission failed in October and was $5,200 but given a $1,800 discount. This is the 6th major repair to this van since its purchase as a new vehicle. The consumer wants to know if the complaints she found from other consumers that had similar problems with their vehicles like her were made at the same plant around the same time her vehicle was manufactured. Updated 01/05/10.
Failure of gasket material to contain oil within engine valve cover cylinder head has created oil leak that was initially noticed on the garage floor. Dealer has verified problem by injecting dye and using black-light to establish the source of the oil leak. This might typically be a non-issue for an older model year vehicle but I would not expect such a problem on a vehicle that has been in service less than 4 years and personally owned for only 2 1/4 years. Problem could be one of manufacture installation or material defect or a combination of the two. Engine failure could result if problem is not addressed/resolved. Resolution of the problem requires a significant financial commitment that covers the labor to drop the engine in order to remove and replace the valve cover gasket. This owner thinks that this is a manufacturer defect that should be covered by the dealer since this vehicle has not been abused or operated in extreme conditions.