1993 Chevy Astro 6 cyl Automatic
I changed the the transmission filter and fluid on my 1993 Chevrolet Astro. After doing the that, at the start with the gas pedal almost to the floor, the van seems to have no get up and go. When it finally does go, it doesn't want to shift out of 2nd gear. I am able to get the van over 70mph but it sounds like I am still in 2nd gear. What would be the cause of this? I was not having these problems before. The only problems I had were some revving or small surges every now and again and some loss of power when going up hill. This I contributed to a dirty or clogged transmission filter. What do I need to do or check from here to correct the problem?