Join Date: Oct 2011
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My friend's 2001 Rav4 with U140F faced these hard shifting symptoms.
It got quite soon transmission flush and new oils with no help.
Then I send the ECU for repair and after reinstalling it got bit better and better until about 1000km when it lost 3th&4th gears during driving.
Reverse gear became missing too. It never got perfect until it got worse again
I did with Techstream Ect memory reset to try once more.
But if it is not successful, what to do next? Those solenoids, can I replace only some of them?
P0755 was recorederror code. No other transmission related code have been present, P1135 has been regular code too.