Lumina V6-191 3.1L (1990)
Power Steering Pump: Service and Repair
Removal/Installation
1.
Disconnect battery ground cable.
2.
Disconnect inlet and outlet hoses from pump.
3.
Remove serpentine belt guard as necessary.
4.
Remove belt from pulley, using 1/2 inch breaker bar.
5.
Remove coolant recovery bottle as necessary.
6.
Remove pump assembly.
7.
Transfer pulley as necessary.
8.
Reverse procedure to install, them bleed power steering system as follows:
a. Turn wheels all the way to left.
b. Add power steering to Cold mark on fluid level indicator.
c. Start engine and run at fast idle, then add fluid, if necessary, to bring level to Cold mark.
d. Bleed system by turning wheels from side to side without hitting stops. Keep fluid level at Cold mark.
e. Return wheels to center position and continue running engine for 2-3 minutes.
f.
Road test vehicle to ensure steering functions normally and is free of noise.
g. Check fluid level and ensure level is at Hot mark after system has stabilized at its normal operating temperature.
