Okay, everytime i shift into 3rd from 2nd at around 6300 rpm and floor the gas pedal, I always experience a slight delay in acceleration about .5 sec. never happened in other gears. anyone experience similar problem? or is this normal? I know my car needs an alignment, but could this be the cause?

 

My best guess is that your losing traction, and that your traction control is cutting the throttle when you do. Either don't shift quite so aggresively or turn off TCS and be ready for the backend to go out a bit.

 

is it an automatic?

 

No, manual. It happens when the traction control is off as well.

 

wrong thread, sorry

 

how many miles on the car?

clutch ever replaced?

 

only about 10k mile on the car, and the clutch has never been replaced.
I recently installed the ur crank pully, and i notice that sometimes when i start the car when the motor is cold, there seemed to be some noises coming from either the drive train/the crank pully. it sounds like something is not tighten down and is free to spin. the noise usually only last about 1 sec. however, i doubt the ur pully is the cause of delay in acceleration b/c i have experienced this problem long before the pully install. please advice and thx in advance for all ur great help...thx