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Page Hits: 1964373
US BULLETIN No: N001/93 DATE: 1993
CAN BULLETIN No: N/A
APPLIES TO: 1989-1992 MPV AFFECTED VINs: All
SUBJECT: Diagnosing power steering rack oil leakage
DETAILS:

When diagnosing a power steering rack leakage, be sure to identify the location of the leak first before replacing the P/S rack. Some P/S rack assemblies have been unnecessarily replaced.

REPAIR PROCEDURE

To locate leakage, inspect the P/S system as follows:

  1. If the reservoir is at the specified level, the system is normal.
  2. If the reservoir is lower than the specified level perform the following test:

PRESSURIZING THE P/S SYSTEM

  1. Start the engine and let it idle.
  2. Turn and briefly hold the steering wheel fully to the right and left. Repeat this step several times.
    CAUTION: TO PREVENT DAMAGE TO THE STEERING SYSTEM, DO NOT KEEP THE STEERING WHEEL IN THE FULLY TURNED POSITION FOR MORE THAN 15 SECONDS.
  3. Inspect the system paying close attention to the various fittings and connections. If no leaks are found at these locations, remove the inner boot clamp and pull the boot forward for inspection. Repeat this procedure for the other side.
    NOTE: The steering shaft is normally coated with heavy grease. Do not confuse this with P/S fluid leakage.
CONSUMER NOTICE:
The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by "do-it-yourselfers." Consumers should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies, consumers should contact their nearest authorized Mazda dealership.
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