Three problems related to gas recirculation valve (egr valve) have been reported for the 2005 Honda Odyssey. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Honda Odyssey based on all problems reported for the 2005 Odyssey.
While on a roadtrip, the check engine light went on. Dealer replaced egr valve because there was a piece of metal stuck on it. On the return trip, the check engine light went on again. Mechanics at the dealer have found large quantities of metal in the engine. Mechanics have not seen this problem previously and is currently communicating with Honda engineers regarding this matter.
Condenser problems. . In hot June - the first day that temperatures were almost 100 degrees we experience our first set of many problem with this van. We had owned vehicle for 2 months and only put 2700 miles on it. We had experience a condenser explosion. We were sitting @ stop light and I heard a pop and steam rolled all around vehicle. Had vehicle towed to shop to find out that condenser had a bad spot in it and would be covered by warranty. Before it was declared that it was covered under warranty - we keep being threaten by service writer if it's not warranty related that I would owe checkout fees, what it would take to fix it and the complete rental bill. Appears that front bumper and condenser design was not thought out. I agree with the other complaints that a grille or a mesh area should cover the large opening. Fyi, we were told, by dealership, that most of the vehicles have not been covered under warranty - but ours appeared to have a weak spot in the condenser.
The fan in the vehicle is blowing hot air. When vent is used (110 degrees) outside temperature is about 70 degrees. It is apparent that the air coming from vent has been heated. The engine or hot air from engine has leaked into the air intake. In order to be comfortable in vehicle, air conditioner must be used excessively in order to cool down constant flow of hot air coming from vent pipe. The problem is most apparent when vehicle is stopped or at low speeds. Dealer reports they cannot do anything since this is a design problem. This leads to decreased fuel efficiency.