Dodge 2000 DURANGO Service Manual page 778

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DESCRIPTION AND OPERATION (Continued)

Fig. 2 Steering Pump, Gear And Oil Cooler - 4.7L

1 – HYDRAULIC PUMP

2 – RACK AND PINION GEAR

3 – OIL COOLER

DIAGNOSIS AND TESTING

POWER STEERING SYSTEM

There is some noise in all power steering systems. One of the most common is a hissing sound evident at a

standstill parking. Or when the steering wheel is at the end of it's travel. Hiss is a high frequency noise similar

to that of a water tap being closed slowly. The noise is present in all valves that have a high velocity fluid passing

through an orifice. There is no relationship between this noise and steering performance.

OBJECTIONAL HISS OR

RATTLE OR CLUNK

CHIRP OR SQUEAL

STEERING NOISE

POSSIBLE CAUSES

1. Steering intermediate shaft to dash panel

2. Noisy valve in power steering gear.

1. Gear mounting bolts loose.

2. Loose or damaged suspension

3. Internal gear noise.

4. Pressure hose in contact with other

5. Loose or damaged intermediate shaft or

1. Loose belt.

1. Check and repair seal at dash

2. Replace steering gear.

1. Tighten bolts to specification.

2. Inspect and repair suspension.

3. Replace steering gear.

4. Reposition hose.

5. Inspect and repair or replace.

1. Adjust or replace.

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