Hello everyone. This is my first post. Please bear with me since I am new to posting. I think that I searched for a similar issue prior to posting so that this wouldn't be redundant (as I know that this vintage Accord has many transmission issues).
First some history: My 99 Accord EX 4 cylinder has only about 46,700 original miles on it. It was my mom's car before I got it and she only drove it to the grocery store. She bought it new so I know it's history. For all but the last 3 years the car only went to the gas station and to the local lube place for an oil change every 5k miles or so. When I got the car 3 years ago it had about 20k miles on it and I had tons of work done on it at the Honda dealership to get all the maintenance done on it that should have been done over the years (including timing belt). At that time it had a 'transmission service' at the dealership as part of the service. The car even had original tires that needed replacing due to dry rot.
Now to my question: When the weather outside it cool/cold, the car sometimes revs a little between first and second gear before shifting. If the temp is below 40 degrees, it doesn't happen at first, but after about 1 mile it will do this for 2 or maybe 3 shifts from 1st to 2nd and then will be fine. If the temp outside is between 40 and about 55, it will do this for the first 2 or 3 shifts and it will be fine thereafter. And, if the weather is warmer than about 55 degrees, it will shift fine.
I checked the level and quality of the transmission fluid and it appears fine. I have done routine maintenance at the Honda dealer since 3 years ago but have not touched the ATF since then.
So, I'm wondering if this is a precursor to transmission troubles and what is suggested that I do at this time.