Three problems related to engine belts and pulleys 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.
The top bracket holding the alternator to the engine block failed again for the third time while my wife was driving the van. As a result of the failure of the top bracket, the stress on the main serpentine belt caused the bolt holding the alternator in place to snap off at the engine block. This caused the alternator to become loose and caused a burning smell to come into the cabin of the vehicle. The alternator loose and un-attached poses a potential catastrophic failure with the pully system and the power steering which may cause an accident. I reported the previous incident of the same problem on October 25th, 2010. My concern is that this is a recurring problem that Honda is aware of and not correcting with a recall and addition of a re engineered and strengthened top alternator bracket. I am also very concerned that failure of this part/system while my wife and children are driving the van will cause an accident and injury or death to my family. I have called Honda and their solution or recommendation is to replace the part and use proper torque specifications. This has not worked 2 times so far and my mechanic tried to weld and additional piece of metal to the oem bracket to make the bracket stronger, and this did not work.
Own 2003 Honda Odyssey with 107,000 miles. Just had timing belt replaced at dealership, full inspection, changed transmission fluid. Only two weeks later transmission failed on i4 on way to orlando with family. A harrowing experience.
Defective transmission, problem with second gear. And timing belt. This document is written in spanish.