Automatic Trans. on 1999 Mitsubishi Eclipse

I have had problems with my transmission lately. It is slipping once it gets into the high gears. From 3rd to 4th Is there a fix to this without having to have it rebuilt?

Asked by for the 1999 Mitsubishi Eclipse
In simplest terms - probably not. Slipping is usually the result of an internal pressure issue or clutch slippage. Both are mechanical failures that would likely necessitate tear down and repair.