Automatic transmission 4L30E
| Gearbox manufacturer | General Motors |
| Number of gears | 4 gears and 1 reverse gear |
| Gear shifting | automatic depending on the throttle position and vehicle speed |
| Forced downshifting | when the accelerator pedal is fully depressed |
Transmission fluid
| Type | Dexron ® III |
| Volume, l: - for complete replacement, including torque converter | 8,8 |
| - after draining the liquid | 5,5 |
Tightening torques for threaded connections, Nm
| Transmission Fluid Level Check Plug | 38 |
| Transmission Fluid Pressure Test Port Plug | 14 |
| Gearbox Mode Switch Mounting Bolts | 13 |
| Nut securing the lever to the gearbox mode switch | 23 |
| Transmission Fluid Drain Plug | 25 |
| Band Brake Servo Cover Mounting Bolts | 25 |
| Selector lever mounting nuts | 9 |
| Nuts securing the gearshift lever seal to the vehicle floor | 9 |
| Bolts securing the oil pan to the gearbox housing | 12 |
| Filter mounting bolts | 20 |
| Bolts for fastening the electromagnetic valves to the transition case | 10 |
| Bolts securing the oil filter to the gearbox housing | 20 |
| Gearbox to engine mounting bolts: - bolts A | 76 |
| - bolts B | 8 |
| - bolts C | 40 |
| Torque converter to flywheel mounting bolts | 54 |
| Bolts for fastening inspection covers to clutch housing and engine | 8 |
| Connecting nuts for fastening the tubes connecting the gearbox to the heat exchanger | 44 |
| Bolts for fastening the rear beam to the vehicle chassis | 76 |
| Gearbox support to rear beam mounting nuts | 50 |
| Wiring harness heat shield mounting bolts | 8 |
| Gearbox support to bracket mounting nuts | 50 |
| Gearbox support to rear beam mounting nuts | 50 |
| Valve Block Support Plate Fastening Bolts | 13 |
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