Grand Cherokee 4WD V8-4.7L Flex Fuel (2009)
Power Steering Line/Hose: Testing and Inspection
POWER STEERING PUMP AND HOSES
NOTE: This information is designed to be used in conjunction with the diagnostic charts at the beginning of the Steering section. See: Testing
and Inspection
CHECKING FOR WEAR OF POWER STEERING PUMP INTERNAL COMPONENTS
1. Place gear selector in PARK (or NEUTRAL) with wheels chalked.
2. With the engine idling, have a helper turn the steering wheel.
3. Using an electronic listening tool, determine if noise is coming from the pump.
4. Increase the engine speed and have a helper turn the steering wheel. Does the noise change with load?
5. Replace the power steering pump if excessive noise is present. See: Power Steering Pump/Service and Repair/Power Steering Pump - Removal
CHECKING FOR POWER STEERING HOSES TOUCHING BODY OR FRAME OF VEHICLE
Check hoses and hose tubes as following:
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Inspect hoses and hose tubes for witness marks. If witness marks are present, adjust hose(s) to the proper position by loosening, repositioning and
tightening attachments to the specified torque See: Power Steering Pump/Specifications. Do not bend tubing to adjust. Replace the hose
assembly if damaged.
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Check fastener torque of hose mounting brackets and tube nuts. See: Power Steering Pump/Specifications
-
Have a helper bump the steering gear off of the stops to induce pressure fluctuations which may move the hose. If hose contact is made, adjust
hose(s) to the proper position by loosening, repositioning and tightening attachments to the specified torque See: Power Steering
Pump/Specifications. Do not bend tubing to adjust. Replace the hose assembly if damaged.
