So as most will know my engine went bang at around 4-5,000rpm, it also took out my transfer case.
A new engine has been fitted, upgraded and a new transfer case installed. After 31 dyno miles all operating ok the gearbox decided to not play ball and showed an error code P07457F Pressure control solenoid A actuator. Instead of changing one actuator I went for the whole set in a new valve body. Unfortunately that hasn’t solved the issue.
So engine running you can go from park to drive but no gear gets engaged and then when you try and shift it goes to 3rd but again nothing happens. To me that suggests somethings out of alignment rather than a new gearbox but the garage is stumped and so am I.
Online looking at other Toyota DAT transmissions the general thing seems to be check fluid levels and complete a TCM module reset on techstream which have both been done, pre solenoid replacement and after.
Whilst I know I’ll be the first probably with an issue here before I say yes to fitting a new gearbox and still finding a problem I thought I’d throw it to the hive mind for any suggestions or if anyone knows of an auto gearbox specialist they can recommend?
A new engine has been fitted, upgraded and a new transfer case installed. After 31 dyno miles all operating ok the gearbox decided to not play ball and showed an error code P07457F Pressure control solenoid A actuator. Instead of changing one actuator I went for the whole set in a new valve body. Unfortunately that hasn’t solved the issue.
So engine running you can go from park to drive but no gear gets engaged and then when you try and shift it goes to 3rd but again nothing happens. To me that suggests somethings out of alignment rather than a new gearbox but the garage is stumped and so am I.
Online looking at other Toyota DAT transmissions the general thing seems to be check fluid levels and complete a TCM module reset on techstream which have both been done, pre solenoid replacement and after.
Whilst I know I’ll be the first probably with an issue here before I say yes to fitting a new gearbox and still finding a problem I thought I’d throw it to the hive mind for any suggestions or if anyone knows of an auto gearbox specialist they can recommend?
