I recently purchase an Acura TL 2004 with 92k miles and Shuddering happens when slightly depressing gas pedal, cruising or slightly accelerating at around 20-30mph through 2-3rpm Shuddering stops when letting off the gas pedal or by de-pressing to accelerate quickly. I've been told to replace pressure switches, transmission oil, or transmission... Any ideas?

 

could be the tires out of balance since it happens at certain speed

 

Not if it goes away when he stops accelerating. It's more than likely the axles.

 

could be torque converter shutter that you describe about.

 

Car stock height or lowered?

 

if he stops accelerating then the speed goes down so....

 

Get your axles checked & might as well check your engine mounts

 

car are is lowered ... I think the coils were cut or burnt...

 

I think it might be my engine mounts as well.. I know my rear lower arm controls are trash..

 

I was looking more into the torque converter but I'm not sure what to look into first...