1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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17,323 Posts
Welcome to Allpar. Probably an internal hydraulic leak related to what you had apart?
By 'range speed sensor', do you mean the 'transaxle range sensor' or TRS?
By 'lever body', do you mean the valve body?
Nothing electronic will prevent P, R, N or 2nd gear from working.
While putting the valve body back in, you need to be sure that the accumulator pistons and springs that sit on top of the valve body go back into their case bores. It is easy for a piston scarf ring to become dislodged and become stuck between the case and valve body and prevent sealing.
The front pump has to draw ATF up through the filter and needs a seated valve body to do so. A 'loss of prime' means that the pump can't suck the fluid up into the chamber to begin pumping and build pressure. Revving it slightly in Neutral may restore prime and it will then have pressure to engage.
Do you have any fault codes now? You can see the gears change from your VF instrument cluster display?
You replaced the filter as well? How did the bottom of the trans pan look debris or metal particle-wise?
P0740 may be from a worn torque converter clutch and front pump.
By 'range speed sensor', do you mean the 'transaxle range sensor' or TRS?
By 'lever body', do you mean the valve body?
Nothing electronic will prevent P, R, N or 2nd gear from working.
While putting the valve body back in, you need to be sure that the accumulator pistons and springs that sit on top of the valve body go back into their case bores. It is easy for a piston scarf ring to become dislodged and become stuck between the case and valve body and prevent sealing.
The front pump has to draw ATF up through the filter and needs a seated valve body to do so. A 'loss of prime' means that the pump can't suck the fluid up into the chamber to begin pumping and build pressure. Revving it slightly in Neutral may restore prime and it will then have pressure to engage.
Do you have any fault codes now? You can see the gears change from your VF instrument cluster display?
You replaced the filter as well? How did the bottom of the trans pan look debris or metal particle-wise?
P0740 may be from a worn torque converter clutch and front pump.