 Thank you ABE. Other information.
The Oil was changed couple weeks ago, so should be OK. The transmission works fine now. Mechanic in Canadian Tire said it is Tranny's fault. Mechanic in another body shop said it is transaxle's fault. you are right, the exaust is big suspect. Yet when car is parking, I floor gas pedal, then release gas pedal completely. No whining at all. The whining will stop right away once I step gas pedal even a little bit. very sensitive. Likewise, when speed is high enough,the whining will show up right away only after I loose gas pedal completely. | 
