4T40-E Automatic Transaxle

Fig. 2 Cross Sectional View Of 4T40-E Transaxle:

DESCRIPTION
The 4T40-E transaxle, Fig. 2, is a fully automatic electronically controlled front wheel drive transaxle with four forward gear ranges including overdrive and one reverse gear range. Oil pressure is supplied by a variable displacement vane type oil pump. Two shift solenoids, operated by the PCM, control shift points and TCC apply rates, which are influenced by various sensor inputs. The transaxle unit includes a three element hydraulic torque converter and lockup clutching element, four multiple disc clutch packs, roller clutch, sprag clutch, two bands and a compound reaction planetary gearset. Power is transmitted to the drive wheels from the planetary gear through a final drive gearset and differential assembly.