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/PT 21-0003.pdf
JDA6261 PT 21 0003 Failure To Transfer Sensor Components Results In Shaft Seal Failure Or Check Engine Light 1992 2004 Mazda and Mitsubishi vehicles with sensor equipped power steering pumps The replacement power steering pump front seal has blown out or the check engine light turns on and code P550 is set It may be necessary to transfer the original sensor and its components shown below to the replacement pump If these components are not transferred correctly shaft seal failure results due to excessive pressure or if the sensor is defective code P550 is set Figure 1 shows the sensor spring and rubber tipped style plunger Be sure components are installed in the order shown and the rubber tipped plunger is installed in the direction shown Note that the metal tipped style plunger shown in Figure 2 may be installed in ether direction if the metal plunger separates from the brass holder The third style Figure 3 is already assembled as one piece Be sure to thoroughly clean the sensor and its components and install the sensor using the new supplied O ring Refer to the vehicle service manual for correct tightening specs Replace a damaged or defective sensor dealer item If code P550 is set be sure to verify proper operation of sensor and the ECM before servicing or replacing the power steering pump Application Problem Cause Solution Rubber tipped plunger O ring Sensor Spring Figure 1 Pressure Sensor Assembly Rubber tipped plunger Figure 2 Steel tipped plunger Figure 3 One piece
