Do you need to drain oil to change oil sending unit in 2000 chevy cavalier?
No you do not.
you change the manual transmission fluid in a '99 cavalier simply by removing the transmission drain plug and allowing all the fluid to drain then replace the plug and refill with Syncromesh transmission fluid(that is the fluid recommended by Chevy for use in your transmission) It should take 2 quarts.
Answer I have a 99 cavalier. The drain plug for mine is in the bottom right corner of the radiator as you are facing the front of the car. You attach a rubber hose to the side and turn the plug counter clockwise to open it. I don't know if a 97 is the same, but cavaliers don't seem to change too much from one year to the next.
The Transmission Fluid Check bolt is in the front right part of the Transmission Pan. This is in regards to a 1998 Chevy Cavalier (since I have one myself) and may not be correct for any other year. This bolt is just to check the fluid level is correct and will not drain the entire Transmission fluid reservoir, you must remove the pan to remove the transmission fluid.
the same way you would on any other car. there is a drain plug on the bottem of the oil pan you take that bolt out and let the oil drain and then you take the oil filter off . and make sure after all the oil is all drained out you put the plug back in the oil pan. replace the oil filter and put it back on and put oil back in the…