My car will hardly switch gears and it is using a ton of rpms. Is there anything I can do besides getting a new or rebuilt transmission?
You don't have to open up your exhaust, you won't have any bad things happen. K N is usually my pick for all of my 5 auto's.
a new tranny costs a lot. buy a rebuild or a used one at a salvage yard with low mileage.
MORE TRANSMISSION FLUID!!!
If it is an automatic, check to see if you have tranny fluid. Done by leaving the car running in park and removing the dipstick(read your manual to get the pictures) No oil, no go. It is called maintenancekinda like brushing your teeth - you got to do it or suffer the consequences. If it is a standard transmission(one with a clutch pedal) then it sounds like you wore out the clutch. Transmission is OK. The clutch is a part that joins/or seperates the transmission and the engine. Like brake pads. They do wear outand need to be replaced occasionally. If you do not know how to drive a standard properly, or continuously towing a trailer - this will cause premature wear on a clutch disc. Never be afraid to ask how to drive it right. A clutch could last over 100K miles when driven right or could go in less than 30K when driven wrong.