This is my friend's car, but I really want to help him. the car is 2002 dodge neon automatic
the car rattles when I step on the accel, and also rattles sometimes when in stop
it also is incredibly slow. I slam on the accelerator and it doesn't produce the power that's supposed to produce
in highway it takes a long time to reach 60mph
Could it be just the spark plugs? will I have to change the oil? or is something wrong with the transmission? thanks.

 

Could have bad motor mounts causing the rattling, I know my old car did that. Im pretty sure a stock neons 0-60 speed is around 8 seconds. When was the last time the oil was changed?, check the oil level. idk Im just guessing, wait for the more neon wise to answer, they may have a better answer.

Mat

 

atx neons are slow as hell....even with bolt ons...

 

they are not that slow, like he describes.

 

to the OP, sound like one or more cyls not firing.

 

When my plugs were effed up, the car made loud snapping sound. I actually beat a v6 stang the other day, the kid had it rice out, be as spoiler, fart can and all.

Mat

 

so I'm guessing, uhm, it's the misfire in sparkplugs?[:@]

 

ya, that or wires or coil pack.

 

my girl has an ATX neon OMG they are JUNK all kinds of rattling and jumping when I put it in Drive... it only has 30 K miles..

 

it was the sparkplugs lol...#2 misfire, when I read the code
alright thanks ppl