ok, this is the first time this ever happened to me. i took a little trip probly drove the blazer about 40 minutes with no shifting probs at all. park it for a little bit and then drive it again around the are and then take the 40 minute trip back home and notice that i believe it was getting into second gear was shifting hard and you can really feel it. here's the weird part i thought it was all screwed up now but when i got home i parked it for no more then 2 minutes and then drove it again with no problems again shifted nice and smooth. help me out here. just in case in don't show up.

1998 Chevy Blazer
4.3 Engine

 

I had this type of prob with my 99S10 girly truck. Eventually the check engine light came on and my fluid was a little burned but not to the polish point. The dealership wanted mega bucks to fix (replace whole tranny)but my local AAMCO guys did some magic on the transmission and it has not reappeared. They drilled out holes on an interior plate, replaced the transmission wiring harness and invertedanother part ( some kind of pump) anyway I am happy, my truck is happy and it cost $800 (in Canada). Actually cheap at the price.