Power Steering Pump Replacement Procedures

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Focus: Stop the Comebacks Power Steering Pump Replacement… Skipping steps costs you time and trouble later. Use the correct tools and procedures!

Strong Evidence • Improper pulley installation •Re-using the old O-rings Extensive Warranty Analysis has shown these significant root causes to • Use of fluid other than the repeat power steering pump failures: OE-specified steering fluid •Failure to flush the system Critical Steps Always follow authorized service procedures for the specific vehicle. These steps are particularly essential to fix it right the first time reliability: 1. Flush and bleed the system using the proper J 43485 J 3555 special tools. Any residual contaminants will result in pump failure… It’s just a matter of time. Low or no pressure from the power steering pump may be the result of dirty or contaminated fluid. This will cause the relief valve to stop functioning.

Mity Vac and reservoir adapter tool

2. Remove the pulley using the proper special tool. Distorting the pulley may damage bearings on the new pump. Pulley alignment is crucial. 3. Use the new O-rings included with the

Proper pulley removal pump. The new reservoir O-ring must be lubricated OE-specific Power Steering Fluid prior to installation. Lubricate the control O-RING valve O-ring prior to installation as well. Ensure the O-ring is in its exact groove position and NOT BYPASS HOLE covering the pressure bypass O-ring in position avoiding O-ring about to go onto reservoir shoulder hole. groove with bypass hole Follow these procedures to ensure the replaced power steering pump operates properly for many years… and miles… to come!

4. Properly install the pulley onto the new pump‘s drive shaft. Installation tools are included with each replacement pump. An authorized special service tool or equivalent is also available. Proper pulley installation and alignment are essential for engineered pump life. Service tools exist to ensure exact pulley alignment. The Gates DriveAlign™ Laser Alignment Tool can be used on the entire accessory drive system. This laser tool quickly Proper pulley installation mounts to each drive pulley to check the one next to it. Any out-of-round, distortion and/or misalignment are readily apparent so correction

or replacement can be performed. ○○○○○

OFFSET ANGULAR BENT SHAFT CORRECT MISALIGNMENT MISALIGNMENT MISALIGNMENT ALIGNMENT

Laser tool on vehicle drive pulley and kit Examples of laser position on pulley and interpretation contents displayed

5. Use only the recommended Power Steering Fluid: ACDelco 1 Quart -- #10-5030 1 Pint -- #10-5031 Just because some brake fluids and transmission fluids are red, does NOT mean they are compatible with the steering system and pump components. Bleed the power steering system and verify proper ACDelco Power Steering Fluid system operation. Contact us at 1-800-ACDelco or acdelco.com