[MrMister]

I have a '96 2.2L Cavalier with an automatic transmission. The car has about 275,XXX miles on it. Recently, I have been having problems with the transmission. Basically, the transmission doesn't shift unless I release the gas pedal and press down on it again. It always happens around the 20-25 m.p.h. mark. If I don't release the gas, my speed doesn't increase much, i.e. it goes up to about 30 m.p.h. and I hear the engine revving hard. Once I do the gas pedal thing though, it accelerates well. Any ideas on what could be causing this problem?