K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
pressure and return hose along with long cooler lines. Such long systems contain greater volumes of fluid and vehicles so equipped tend to have longer
periods of reduced power assist. The new fluid performs particularly well with current designed Rack and Pinion steering systems and special
remanufactured Rack and Pinion Steering Assemblies.
PARTS INFORMATION:
Low Temperature Climate Service Fluid is available from GMSPO. Order as:
Parts are currently available from GMSPO.
SERVICE PROCEDURE:
The power steering fluid replacement procedure is a two-stage process: first, flushing the old fluid from the system with new fluid; and second, bleeding
the system to remove any trapped air. The two sequences outline the steps in each procedure.
FLUSHING THE POWER STEERING SYSTEM
1.
Raise the front end of the vehicle off the ground until the wheels are free to turn.
2.
Remove the fluid return line at the pump reservoir inlet connector.
3.
Plug the inlet connector port on the pump reservoir.
4.
Position the fluid return line toward a large container in order to catch the draining fluid.
5.
While a second person fills the reservoir with new Low Temperature Climate Service Fluid, start and run the engine at idle.
6.
Turn the steering wheel from stop to stop.
NOTICE:
Do not hold the wheel against stops while flushing the system, Holding steering wheel against wheel stops will cause high system pressure,
overheating, and damage to the pump and/or gear.
7.
Continue draining until all of the old fluid is cleared from the power steering system. Addition of approximately 1 quart of new fluid will be
required to flush system.
8.
Unplug pump reservoir inlet and reconnect return line.
9.
Turn engine off, and fill reservoir to the "Full Cold" mark.
10.
Continue with following procedure "Bleeding the Power Steering System".
