several problems accelerating ect...

[getyourgunn]

problem 1: when accelerating pretty hard(merging on the highway) my car sort of bounces up and down slightly like an oscillation. sort of hard to describe.

problem 2: it only happens on my street but when pulling out of my street i am driving up a steep hill, then i come to an intersection of another hill slanting down to my right. when i turn left to go up the second hill, if i dont take her easy it feels like something slips makes a thump shakes the car but then starts going as normal again. it only happens on this one turn though.

problem 3: on a warm day after driving it and its all warmed up turn it off go in a store or something come out and start her up again, it starts up fine but then the idle dips, and acts like its going to die it does this a few times then returns to normal idle.

any help to prevent major problems in the future would be great.

[themetro]

i don't know if its just me driving on the freeway but after 80mph, does it slowly go up? ive never seen my car go 90.

[bigbird]

#3 may be a bad IAC (idle air control). thoes like to break.

#2 is there something that your running over that might cause the tire to slip and cause what you think is an engine malfunction? (gotta get the simple shit out fo the way).

for both 1 and 2 what do the RPMs do when this happens?