Clutch was replaced a year ago and now when i push the clutch it wont allow me to change gears and it sounds like an air pump

Just off the top of my head ... since this is a manual ... are you sure the clutch is disengaging? Can you move through the gears with the clutch pedal pushed down and engaged?

you may have a air bubble in slave system. look at slave, if tilted up park on hill pump clutch few times .if that does not fix . get a baby nose cleaner, push clutch down put cleaner in hole in botton of slave suck fuild out of hole ,do it again with pedal up, it should grab air bubble and remove it. good luck let me know what works.

Im pretty sure the vehicle has a bad throw out bearing. That's what's making the noise when you depress the clutch. It would need to be replaced, along with the clutch disc, and pressure plate.

Does the clutch pedal engage? This sounds like a clutch problem to me.

Sound like a worn bushing or a synchronizer, How does the clutch pedal feel like, does it feel spongy? Try this with the vehicle off not steping on the clutch can you run it in gears? is it smooth? Now with the engine running step on the clutch do you have to push effort so much?For first the car must be in a complete stop. the sychronizer wont allow you in gear.2nd gear is a differnt story it will allow you in gear easily wheather rolling slowly foward or a complete stop. Take a look at you clutch hydraulic fluid level before you drive off pump the clutch and see if that eases the problem if it does then you are looking at a clutch hydraulic problem.If no change is felt a new clutch assemble with a hydraulic slave cyclinder will be in the work for the Rav4 (why I say this the pilot bearing tend to binds)

It's either leaking out of the line from the M/C to the slave or it's leaking out of the slave

pump the blank out of it....i have had to pump one of these new clutchs 100or more times to get it to bleed right...and yes i am saying just sit there and pump the clutch so what do you have to loose besides a couple of pounds....have a happy new year

It could be a bad clutch cylinder or a bad slave cylinder. If it is either - the clutch would not fully disengage. This would make changing gears very difficult. If it is the slave cylinder the system should loose fluid and start to drip if you pump it repeatedly. If it is the clucth cylinder it should just seep past the plunger seals and the fluid may not lower. If you put the truck in gear without starting it and push the clutch in - can you push the vehicle? If the answer is no - the clutch is not fully disengaged.

I would say it is your clutch (In your case it more than likely the throw out bearing if you hear rattle sound.) with the amount of miles and the year of the vehicle. Clutch plates, just like brake pads, eventually wear out. Consider yourself fortunate that you have gone this far without having to replace it.

im a little confused re clutch replacement normally in order to start a manual transmission car the clutch pedal needs to be pressed down all the way before the car will turnover . as you say it will start but you need to push down clutch am i right? but when you try to put it into gear grinding ?wont go in to gear yes is this whats hapinin?ok the way that these clutches work nowadays is that there is a system similar to brake system there is a resivoir for the oil and a slave cylinder that pushes the clutch throwout leaver so that the gears can be changed did you see a small cylinder that pushes against the clutch lever? does it have a hose coming from it ? this system needs to be bleed just like the brakes on your car . find the resivoir small resivoir open lid and fill with brake fluid now go under car and find slave cylinder it will be somewhere near the transmission and bellhousing there will be a hose attached there will also be a bleed nipple attached you need to open this a few turns and let it drip dont press clutch pedal when bleed screw is open it will bring air into system , you want to remove all the air in the system so get a friend to go into car and pump clutch pedal then hold it to the floor while its being held down you open bleed screw until clutch pedal hits the floor tighten bleed screw then tell friend to pump up again do this 5 or 6 times making shure clutch fluid level doesnt drop down too far keep topping it up with the fluid that squirts out while bleeding this way you dont waste fluid as well as keeping fluid from hitting the ground .anyhow after trying this slave cylinder bleeding proceedure .try to see if car will go into gear . also see that there is no adjustment on slave cylinder . also i hope that you put the clutch facing the correct direction flywheel side towards flywheel . let me know how you do with this project