I too drive '02 Odyssey and had a similar problem like yours last year. I was fed up of taking te car to the mechanic every now and then and I used to keenly observe his workings. I had been looking up the internet for service manuals and came up with which has maintenance and service techniques specifically for the '02 Odyssey.
You could also use them and work on the car yourself as I have been doing since a year.
Last edited by jwko; 05-13-2013 at 12:58 PM.