Automatic gearbox 4L30E car Opel Frontera B

Technical data
Automatic transmission 4L30E Gearbox manufacturer General Motors Number of gears 4 gears and 1 reverse gear Gear shifting automatic depending on the throttle...

General information
The automatic transmission has four forward gears and one reverse gear. Hydraulic actuators lock or release individual elements of the planetary gear, thus...

Checking the transmission fluid level
Low transmission fluid level causes the pump to trap air along with the fluid, resulting in reduced fluid pressure. High transmission fluid levels cause the...

Checking hydraulic pressure
Warning: Do not check the pressure at high engine speed for more than 5 seconds, as this may cause the transmission to overheat. Between checks, let the engine...

Adjusting the position of the gearbox mode switch
Mechanical adjustment of the gearbox mode switch position Set the selector lever to position N. Loosen the nut securing the lever (1) to the gearbox mode...

Adjusting the band brakes
Remove the plug and drain the transmission fluid from the gearbox. Remove 16 bolts and oil pan from gearbox housing. Remove the oil filter (1) with the gasket...

Selector lever
Note: Turn the ignition switch key to the LOCK position with the selector lever in the P position. Removal Disconnect the cable from the negative battery...

Gearbox control cable
The selector lever must be in position P. Removal Disconnect the cable from the negative battery terminal. Remove the handles from the selector lever and...

Ignition Switch Lock Cable
Note: Turn the ignition switch key to the LOCK position with the selector lever in the P position. Removal Disconnect the cable from the negative battery...

Replacing the gearbox oil filter
Removal Place a suitable container to collect the drained transmission oil. Remove the plug (arrow) and drain the transmission fluid from the gearbox. Remove...

Removal and installation the gearbox together with the transfer case
Warning! Before removing the transmission together with the transfer case from the vehicle, use the switch located on the instrument panel to switch the...

Transmission support
Removal Raise the vehicle and support it on supports. Remove the transmission guard and plate from the chassis. Use a jack to support the gearbox through a...

Gearbox operating mode switch
Removal Disconnect the cable from the negative battery terminal. Set the selector lever to position N. Remove the cover (5) from the gearbox mode switch....

Replacing the oil pan gasket
Warning: Do not remove the oil pan while the transmission is hot. Removal Place a suitable container to collect the drained transmission oil. Remove the plug...

Electrical connectors for solenoid valves
Removal Remove the oil pan from the transmission housing ( see the relevant chapter ). Remove the filter with the gasket from the gearbox housing ( see the...

Gearbox housing solenoid valves
Removal Place a suitable container to collect the drained transmission oil. Remove the plug (arrow) and drain the transmission fluid from the gearbox. Remove...

Transition Crankcase Solenoid Valves
Removal Place a suitable container to collect the drained transmission oil. Remove the plug (arrow) and drain the transmission fluid from the gearbox. Remove...

Band Brake Servo Valve
Removal Remove the gearbox and transfer case ( see the relevant chapter ). Place a suitable container to collect any leaking transmission fluid. Using the...

Overdrive clutch with planetary gear fastening element
Overdrive clutch with planetary gear mounting element: 1 - 4th gear clutch lock; 2 - 4th gear clutch steel discs; 3 - 4th gear clutch plates; 4 - retainer...

Valve block
Removal Remove the gasket (1), unscrew the 2 bolts (2) and remove the support plate and gasket (3) from the valve block. Remove the ball from the valve block....

Towing a car with an automatic transmission
Warning: Never tow a vehicle in reverse. If in an emergency it is not possible to use towing services, temporary towing of the vehicle is permitted using a...

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