i did tune up on my car,changed spark plugs and wires and changed my feul filter and i added some tranny fluid in,,,and when i am driving and i step on the gas hard,i hear a weird poping and shaking sound from like under car or somewhere? does anyone know what it could be or what i should check for

 

did you use the right trans fluid? CEL come on? did you just install the spark plugs straight from the box? check spark plug gap too.

 

i agree with arbs, only thing i could think of would be the tranny,did you use the right fluid? maybe to much? does it run like it used too? or is the sound and vibrating the only thing thats new?

just when you hit the gas or is it at a certian speed when you hit the gas?