Editing Troubleshooting 4L60E transmissions

Basic details on troubleshooting 4L60E transmissions. ==4L60-700r4-4L60E Drivability problems== Has the transmission lost reverse? Has it also lost 2nd gear and 4th gear(over drive)? If that is the problems, I would suspect the drive shell has broken or stripped out splines. When the drive shell fails, the results is no reverse, 2nd gear or 4th gear. Check for 3 complete shifts in forward gears. Shift 1 - 2nd gear, then shift 2 -3 gear, then shift to 4th gear (overdrive) ==Scanner== A good quality scanner is needed. Not a code reader device. A scanner that can read codes, clear codes , can read a live data stream as the trans is controlled by the PCM. Some scanners can take over control of the transmission for a better diagnostic test of the operation as the vehicle is driven [[Category:Transmission]] [[Category:Undeveloped articles]]

| Editing help (opens in new window)