Transmission Overheat Problem - Help Required Toyota Allion / Premio

[biyagul2]

AOA
I have 2007 Toyota Allion (New Shape) 1.8.. Engine is 2ZR FE
Facing issue in its CVT transmission
in Hot weather and long route its transmission heated up while the engine temperature remains normal
symptoms are jerking on high RPM and after taking some rest it becomes normal, otherwise vehicle stops
Have got checked by some gear mechanics but they have no idea as in normal drive up to 100 KM no issue
Issue arises after 150 to 200 Km drive
Mechanic said we feel nothing bad at the moment
I have replaced its transmission fluid as well Toyota CVT FE
Looking for a kind advise Please
I'm in Karachi

[capsat]

please check if the radiator tank is connected to transmission lines.

thats' transmission oil cooler lines ., and it may be clogged causing low flow transmission overheat
radiator shall be removed & cleaned ( with focus on tank lines in red )

also please check on pillars of vehicle Trans/Axle type if it is K310 / 311 you may have to flush & replace the transmission fluid with Toyota CVT TS

not CVT FE

[biyagul2]

Grateful for the valuable advise.. I HAVE CHANGED THE transmission fluied recently but its toyota cvt fe because on fillind cap it was mention FE.. Please advise its correct if not any specific reasin for go to TS ot TC... Regards

[capsat]

check over dip stick trans fluid specs are punched over it or a sticker is there over holder.
also check vehicle pillar for Trans/Axle Type K310 / K 311 will take TC fluid K 313 takes FE

read this

[capsat]

[biyagul2]

Nice info.. But I its filled with 4 lit.. Not 8.6? Any reason?

[capsat]

desi style change of auto transmission fluid is simply drain & refill. leaveing half of old fluid in Torque converter.

when transmission fluid is changed using pump method ( check you tube ) the old fluid gets drained and new fresh fluid is added into system including the torque converter.

[biyagul2]

And the shift lever position is
P-R-N-D-S-B

[capsat]

am deciphering tech data from the ID plate you shared.

[capsat]

if the Bolt has FE mentioned you changed the right fluid & its correct. - next step is to ask your mechanic to check the fluid warmer connections to the radiator

[capsat]

as per vehicle data the auto transmission CVTF - TC is required for the vehicle
however if this bolt mentioned FE you changed it correct.

[biyagul2]

.

[biyagul2]

I checked it myself and its found connected (fluid warmer) with the engine not with the radiator..

[haseeb.basharat]

when transmission fluid is changed using pump method ( check you tube ) the old fluid gets drained and new fresh fluid is added into system including the torque converter.

Where should we get it in Pakistan? Even toyota stealerships don't do it like that. They drain and refill only.
In my case 3.8 liter was filled after opening pan
K313 transmission here.

[capsat]

I checked it myself and its found connected (fluid warmer) with the engine not with the radiator.

the lines shall be connected to Radiator.

[biyagul2]

Oh.. I see I will cinsult with mechanic today