Easy TH400, 4L80-E reverse servo setup: Craft your own tool
While not as sensitive as some shifting bands, the Reverse band adjustment on a TH400 or 4L80-E transmission is critical, and failure to get it right has tripped up even the best builders. There is nothing worse than getting the transmission installed, putting it in Reverse and then not going anywhere or having no engine
Toyota/Lexus U140E suddenly loses reverse
The complaint A 2002 Lexus RX300 with 3.0-liter engine and the A140F AWD Transmission developed a sudden issue: a loss of reverse and no ability to upshift out of first gear. Fault code P0750 “Shift Solenoid SL1 Performance Malfunction” was set. Scan tool data did indicate that the transmission range sensor was operating properly, and
Trouble in Reverse
When I first started the engine, the car jerked and moved forward 5’ and then neutralized. I noted a hydraulic pump whine also, and when I brought it into the shop I first checked the fluid and found transmission. This Mustang had 96,000 miles on it, so I thought surely this wasn’t a serious electrical issue.
Acura Legend G4, L5 & PL5X Transaxles
As best I can tell there are about 60 versions of the Honda/Acura four-speed transaxle to date. Some of these units, at a glance, look the same. Of course, as you know (usually found out the hard way), they are not the same. As a matter of fact, sometimes even when you look a bit closer they still look the same. This is mainly because of very subtle differences in the pieces and parts contained in these units.
