hey old master, thanks for the response !!!
no warning dash lights are on, no ses, and so on. i think i am going to have the trans serviced next week. i got the blazer at 95000, and it now has 111000. i have no idea if the trans has ever been serviced. i am assuming not. i will have them check history for DTC's too, as you suggested. i cannot believe how many sensors are on cars nowadays.
i put some highway miles on it today, pulling my utility trailer, and it shifted just fine all day. i wonder if the trailer would make any difference on how the trans shifted ?? anyways, everything worked as it should have today.
i did check the trans fluid today, and it is over filled. it was this way when i bought the car. i guess it to be 1/2 quart to 1 quart over filled. i assumed that it was no big deal, so i left it alone. will the over fill cause problems ??
i need advice on getting my trans serviced. i always dropped the pan and cleaned it inside, and changed the filter. put it back together. added the right amount of trans fluid, and down the road i went. now i hear about shops claiming the trans needs to be flushed to get all the old fluid out of it, and no need to change the filter. i think this is absurd. i think the filter needs replaced even with a flush. i do not think they can get all the fluid out with a flush anyways.
so what is right and wrong ???
flush and leave old filter ??
or
drop the pan, clean it, put in new filter, and add fluid to proper level ??
thanks
ron