95 Mercury Mystique seems to be misfiring around 2000 and 3000 rpm. When I push down on the gas, it jumps or pops when it revs up to 3000 rpm. And it also seems the gears do not catch once I pass 2000 rpm to 3000 rpm. It just revs up. I am assuming the gears are not catching. Is it the transmission?

SOURCE: 98 mercury sable transmission

Check your transmission fluid. You could be alittle low. Check it hot in Park while running.

SOURCE: 95 Mercury cougar won't get up to speed from the take off

shifts first to second hard

SOURCE: 95 gran marchis trany; shifting

The transmission needs to have the filter and fluid replaced.

SOURCE: Are you stumped too?? Here is a log of a problem

check for dirty fuel filter at engine,,,also you can try one more additive...SEAFOAM...nine bucks a can...add to your gas tank, the trhottle body...follow direstion on the can....don't be alarmed that the engine might smoke...it is temporary and usually fixes fuel problems caused by dirt of carcon build ups....houpe you can use this info

SOURCE: i have a 95 mercury mystique and it starts but but

THE ENGINES THROTTLE BODY HAS A TPS WICH IS CALLED A THROTTLE POSITIONING SENSOR

It has a built in reostat inside of it which can get a flat spot anywhere in its circuit explaining why your car hesitates or sounds like it is ready to stall out
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I would replace it and have the voltage set at 1.5 volts when set at the idle position
Then it should run fine again