potatomon

Trying to get this issue resolved before it destroys the drivetrain.

I have tranny codes 2714 and 2757 and shift solenoid a b c and d seems errors can be seen sometimes to be popping up sometimes.

​​​​​​Once I start driving the tranny performs perfectly it seems, then after some driving the car starts behaving like a manual car with a clutch so when I'm slowly cruising with idle rpms the rpms don't shoot up like they're supposed to instead it pulls from 1000 rpms whereas they should jump to 1800 or so. I believe this is due to the lock up staying on. Driving sometimes becomes impossible unless S mode is used, even then, the rpms stay locked to the speed of the car which is why im pretty sure its the clutch staying on but I don't understand how it would cause the second issue, which seems to stem from the same root.

Another huge issue is when the car is in this broken mode, full lock turns cause grinds in the drivetrain and I can hear tires skipping like a have a welded diff. Would a locked up clutch cause this??

To sum it up:
Car drives well for about 30 minutes, performs like crap after some time.
-U turns cause drivetrain vibrations, wheels hop and skip.(only when car is in broken mode)

ibidu1

iTrader: (1)

Im guessing you didnt send out your ecu to get it repaired? It sounds like you may have an electronics issue with the transmission. Try fixing the ecu, and then if that doesnt solve it tear into the transmission and look for any bad connections or fried wires. Maybe solenoid harness is messed up!

But why would it lock up, ive never heard of this issue? The transmission has nothing to do with the differential, maybe front diff if this is an awd?

potatomon

QUOTe]
there's no fried wires I swear it's the solenoids getting stuck or whatever they do.imo, Solenoid is the most likely to cause intermittent issues.(the kind I'm having)

Im pretty optimistic that the car won't have these issues once I install a few new solenoids into the tranny and change the old filter

If it doesn't work at least I know solenoids are not the issue but I'm pretty sure it will fix at least some issues I'm having

ibidu1

iTrader: (1)

Ok replace the solenoids, its not very difficult

ServerTech

Did you change the fluid???

potatomon

Yeah and I put Lucas transmission treatment at least it stopped shuddering so damn nuch 😁

ServerTech

That's great! But many of us have had to do the drain/fill 3 or 4 times to get the fluid clean. Mine has the AWD and I get out 4 liters each time with the front of the car jacked way up.
Ravenol makes the best Toyota WS fluid, they sell it on Amazon.
I changed the AWD filter, pan was nasty dirty, pics here:
https://www.clublexus.com/forums/gs-...er-change.html


Best T-WS fluid!

potatomon

i kno man i drained it 3 times its not helping haha