Recently I have noticed that the air conditioning in my 1997 Accord is very weak on hot sunny days - I can feel very little cold air coming out of the vents. But in the evenings it works fine - the air coming out of the vents feels very cold.
It's been probably around 14 years since I had the air conditioning fixed (and it cost around $800 back then). A local Honda dealer has a coupon for an "AC performance test" and up to one pound of Freon. Could it be that all I need is some Freon to be added, or is something else the problem?
EDIT: Does anyone know how many pounds of Freon go into the AC? I called my Honda dealer (not the same one that has the coupon) to see if they would match the coupon, and they said that you can't just add Freon to the AC. They said you have to evacuate all the old Freon and then put new Freon in. They were confused by the "up to one pound of Freon" wording.