try changing the map sensor, that was the problem on mine.
First, check transmission fluid levels, but typically once you loose a full gear, if the fluids topped off, your looking at a transmission rebuild.
Can be old fluids. You should change it every 50,000. -ALL of it, not just the pan. It could have a broken or stuck accumulator.
ATF fluid is automatic transmission fluid. It is used in vehicles that have automatic or self shifting transmissions. To distinguish it from other engine fluids, it is usually red or green.
yes
how do you check transmission fluids
It is important to use the right types of fluids in a car. A 1998 Chevrolet Cavalier uses GM Power Steering Fluid or alternative fluids that meet GM specification GM9985010.
Most automatic transmission fluids are of red color (when original and unused). This is true for Dexron, Mercon and Type F fluids specifically.
NO.
As long as there is no Transmission of bodily fluids, then it is safe.
have.check.transmissions.fluid
Use Dextron II transmission fluid in it or Dextron IIE don't try to use anything else you will regret it if you do. Transmission fluids are manufacturer/transmission specific specific. If you use the wrong type or kind you could ruin the transmission permanently especially and older transmission like yours.Look in your owners manual or on the dipstick, or call a local GM shop to know for sure.
easy if you add fluid get transmission serviced filter and fluids changed and bands checked