B. Removal of the Exhaust Aspirator System

Repair kits for removing the aspirator system (P/N M05013898M), are available to perform the necessary modifications to the affected vehicles. Refer to the Parts Information section of this bulletin.
Kit Contents:
(1) Aspirator Pipe Plug
(2) Cap for air cleaner aspirator hose nipple
(3) Wiring connector plug for ASOV electrical connector
(4) Vacuum hose connector for EGR transducer
(5) VECI label for Federal vehicles
(6) VECI label for California vehicles





1. Disconnect the Air Shut Off Valve (ASOV) electrical connector.

2. Disconnect the ASOV vacuum hose.

3. Disconnect the aspirator system hose from the air cleaner assembly.

4. Remove the aspirator system hose from the aspirator valve, then discard the ASOV and hoses.

5. Using two wrenches, one on the aspirator tube and the other on the aspirator valve, remove and discard the aspirator valve.





6. Clean the aspirator tube threads and remove any excessive rust in the aspirator tube.

7. Install the supplied threaded aspirator cap on the aspirator tube and tighten securely.





8. Clean the aspirator hose nipple on the air cleaner assembly of any debris.

9. Install the supplied rubber cap on the aspirator hose nipple on the air cleaner assembly.





10. Clean any dirt or corrosion from the electrical connector that was attached to the ASOV and install the supplied wiring connector plug on the connector, then secure the connector back onto the main engine wiring harness with electrical tape.





11. Locate the vacuum harness that connects the ASOV and the EGR transducer. Cut the rubber Y-connector out of the harness that splits the vacuum to the ASOV and EGR transducer. Remove and discard the Y-connector and ASOV vacuum hose.





12. Install the supplied rubber vacuum hose connector to connect the EGR transducer vacuum hose to the main vacuum hose.

13. Connect the negative battery terminal. Reprogram the radio and clock.

14. Start the engine. Verify there are no exhaust leaks at the aspirator cap, or no fuel leaks at the pressure regulator (if you replaced the regulator). Turn off the engine.