Have an 03' protege and sometimes when pulling out the rpm's go up pretty high like the tranny is slipping.does not do it everytime.I just let off the gas and it seems to shift into gear.Any ideas?

 

Yes: Tranny slip.
When was it the last time your tranny was serviced? Check the tranny fluid level, maybe it is a bit low. You have to have the engine and tranny at operating temperature, park on a level surface, idle the engine in Park, pull the dipstick from the tranny, wipe it with a clean lint free cloth, reinsert the dipstick and pull it out again to read the level.

 

Checked the tranny fluid prior to my post and it is ok.I never had it serviced since I just bought it a few months ago and PO said he did not remember when or if fluid was changed since the tranny went bad and was replaced under factory warranty.I probably will not put new fluid in it since that would probably make it slip even more.

 

So when and at what mileage was the tranny replaced?

How does the fluid look and smell?

Why do you think a fluid change would cause more slipping? Tranny fluids contain friction modifiers. It is modifying friction, not eliminating it.

You could add some "Lucas Oil Transmission Fix". That will add some friction modifiers to your old fluid. If it treats the symptoms successfully then you should think more positively about a tranny service.

I have no experience with this (because I had never a transmission going bad on me) but there is a product that could revive a marginal transmission: "Seafoam Trans-Tune". I happen to find a Youtube video on it. If using it I would follow the instructions to the dot on the 'i'.
In my opinion using this stuff prior to a transmission service could be safer than a simple transmission service if the transmission has varnish build up.