Yaris Automatic Transmission squeal from second to third gear.

[sackville ns]

Hi All

First post. Be nice to the newbie lol

2007 four door yaris automatic. 340 000 km. Transmission fluid has never been changed, just topped up.

When driving normal, i mean like a grampy, just regular shifting with no issue.

When hitting the gas hard it shifts normal from first to second and then it makes a loud squeal from second to third or third to four. Sounds likes bad bearings in the alternator. It hard to describe.

The noise has been there for the past 50 000 km.

There is no transmission slippage.


Thanks in advance.

Alan