1989 Chevy Full Size 4x4 Blazer won't go past 1st gear, then revs up, also leaking very little transmission fluid, what can be wrong?
Transmission does not go past first gear then sounds very accelerated at about 20mph I can let go of accelerator just a bit and it goes in to gear at about 17-18 mph. I noticed it was leaking very little trans. fluid. The fluid was low because I put in 4 quarts of fluid. Blazer doesn't make any other noises either. What can cause this?