2. Disconnect the cable from the negative terminal of the battery.
Cars produced in 1990.
3. Loosen the nuts and disconnect the windshield wiper arms.
4. Remove the air filter and disconnect the electrical connector from the wiper motor.
5. Remove the two wiper housing bolts using a 55 Torx key and the three nuts securing the housing to the vehicle using a 10 mm socket wrench. Lower the housing down and remove it from the engine compartment.
6. Loosen the two lever mounting bolts enough to allow the bushing to be disconnected from the ball joint on the lever crank.
7. Remove the three bolts and disconnect the windshield wiper motor from the gearbox.
8. Installation is carried out in reverse order.
Cars produced since 1991.
9. Disconnect the connector from the windshield wiper motor.
10. Loosen the two bushing bolts, disconnect the crank arm from the rod, then unscrew the electric motor mounting bolts and remove the electric motor from the grooves in the housing, having first lowered it into the engine compartment (see illustration).
18.10. Loosen the two bushing mounting bolts (A) and disconnect the lever, then unscrew the bolts (B) and remove the electric motor from the gap in the direction shown (1991 and later model cars)
11. Installation is carried out in reverse order.
(The article is reprinted from the website «ChevyMan.ru»)