Operation CHARM: Car repair manuals for everyone.

Steering: Service and Repair

1. Ensure fluid level and drive belt tension are correct, disconnect high pressure hose at gear or pump.
2. Connect pressure gauge tool No. C-3309-E, or equivalent, to both hoses using adapter fittings. Connect spare pressure hose to gear or pump.
3. Fully open test valve, then start and idle engine.
4. Gauge should read below 125 psi, if above specifications, check hoses for restrictions and/or crimped oil lines. Initial pressure should be within specifications. Refer to "Power Steering Pressure Specifications."
5. Close gauge valve completely three times and record highest pressure attained each time. All three readings must be above specifications and within 50 psi of each other. Do not leave valve closed for more than five seconds, pump could be damaged.
6. If recorded pressures are within specifications and readings are within 50 psi, pump is operating properly.
7. If recorded pressures are high, but do not repeat within 50 psi, replace pump.
8. If recorded pressure are constant, but less than minimum specification, replace pump.
9. If pump is within specifications, leave gauge valve open and turn steering wheel from stop to stop with engine idling. Record highest pressures attained at each wheel stop and compare with maximum pump pressure recorded previously. If this pressure cannot be obtained in either side of gear, inspect for gear internal leakage.
10. Shut engine Off, remove tool No. C-3309-E, or equivalent. Reconnect pressure hose, then perform repairs if necessary.