Looking for suggestions on where to start with troubleshooting. I have a 2007 Lexus LX470 with ~282,000 miles. Just today when merging onto the highway at ~75% throttle the transmission failed to shift from 3rd to 4th gear. The entire way home it would shift 1-3 and slip randomly in the lower gears. Got home and pulled P0776 and P2714 from the ECT in techstream. Codes are for pressure control solenoid B & D performance or stuck off. Tried clearing codes and disconnecting the battery for ~15 minutes. Same issue after driving again. I am getting ready to check AT fluid level. I did change the AT fluid with Toyota WS fluid ~5000 miles ago. I did a 14QT drain and fill method through the cooler line method that many people have claimed success with. I also meticulously leveled the car and leveled the fluid at the overflow at ~99F.
Any suggestions on where to start troubleshooting beyond checking the fluid level is much appreciated!
I should also note that this is not the original transmission. The PO had Mr. T put a new one in for the exact same issue at ~207,000 miles. Interesting that this is happening again...
Any suggestions on where to start troubleshooting beyond checking the fluid level is much appreciated!
I should also note that this is not the original transmission. The PO had Mr. T put a new one in for the exact same issue at ~207,000 miles. Interesting that this is happening again...
