Mountaineer 2WD V6-4.0L VIN K (2007)
Steering Gear: Testing and Inspection
Steering Gear Grunt/Shudder Test
1. Start and run the vehicle to operating temperature.
2. Set engine idle speed to 1200 rpm.
3. CAUTION: Do not hold the steering wheel against the stops for more than 3 to 5 seconds at a time. Damage to the power steering pump
will occur.
Rotate the steering wheel to the RH stop, then turn the steering wheel 90° back from that position. Slowly turn the steering wheel back and forth
approximately 1/12 of a full turn.
4. Turn the steering wheel another 90°. Slowly turn the steering wheel back and forth approximately 1/12 of a full turn.
5. Repeat the test with the power steering fluid at different temperatures.
6. If a light grunt is heard or a low (50 - 200 Hz) shudder is present, this is a normal steering system condition.
7. If a loud grunt is heard, or a strong shudder is felt, purge the power steering system. If a loud grunt or strong shudder still exists, check the power
steering lines/hoses for restrictions or damage and repair as necessary. If the lines/hoses are OK, install a new steering gear.
