Whine from 2005 corolla automatic transmission

planetary gears are normally straight cut spur gears and will be noisy in operation. There may be wear in the shafts that they run on and there may be needle bearing wear. Normally you will not hear the noise as you are inside the car. The whine is an indication of a mechanical problem and will be there in all gears . There is a possibility that the noise is from the diff but if you listen carefully when driving if it is there under load but changes on over run(coasting) then it will be the diff of is on and off when you hold a steady speed it will be the diff. Have an accredited transmission specialist shop give you another opinion but if it is the transmission I would not race out right away to have it replaced.

What sources have you tried?
http://www.bing.com/search?q=05+corolla+parts&go=&qs=n&form=QBLH&ghc=0&pq=05+corolla+parts&sc=1-16&sp=-1&sk=

if its a manual transmission then 75-90 gear oil. i suggest moving up to full synthetic 75-90. if it an automatic then toyota type t-iv is the fluid. you can get this at the dealer.

http://www.corolland.com/forums/index.php?/topic/21482-drive-belt-corolla-2005/

Your water pump is going out

I don't show any po174 for an 05 corolla. But I do show a po741, if thats the code you're getting.
It means theres a problem with the torque converter
clutch system. It could be the tcc solenoid. Either way, it's related to what you just had done.
Good luck.

This is caused by a wornout differential drive.
Check your differential oil level to minimize the
whinning. To eliminate it, you need to change the
whole differential.

it sounds like the thrust bearing in worn with no load you can hear the wear or play in the bearing

It could be a case of a worn out clutch pads and lining, There is one adjustment for your clutch it is located under your dash, at the end of your clutch pedals arm and right about where the pedal arm pivots. You adjust it real slow, snall turn makes a big difference. good luck

Hi. 2005 Corolla CE. It's normal. They tend to do this when upshifting form 1st to 2nd gear. No timing chain readjustment needed.

96 Corolla. Overdrive not working properly, if not engaging after 45mph constantly. If driving on the city, is normal, but not after 45mph, when the car is trying to engage overdrive in order to save gas and preserve the trans gears. If not able to get help at the dealership, find another one and explain them the situation.