i have a 1992 toyota paseo. when i turn on the car it seems like it is struggling but turns on and makes a really loud squeal. and while i am idling or at a stop it shakes really really bad. and today while going over a speed bump, it stalled on me. i i know its due for an oil change but is there something else that can be causing my car to do this? HELP !! my first car and i don't know what to do !!!