Variable Induction Control Valve: Service and Repair

1. The following materials are required for the cleaning procedure:
- a 13-25 mm (1/2 to 1.00 in) wire stemmed horse hair or nylon bottle cleaner type brush

- Ford Carburetor Tune-Up Cleaner D9AZ-19579-AA or equivalent meeting Ford specification ESR-M14P9-A (Do not use choke cleaner solvents)

- rubber gloves

- and eye protection.

2. Remove Intake Manifold Runner Control (IMRC) assemblies.

3. Verify that the shaft assembly is causing the stick/bind/grab condition.

4. Holding the IMRC assemblies vertical, liberally spray the cleaner into each of the eight bores concentrating the spray at each shaft/journal interface. Spray from both top and bottom side of the bore, rotating the shaft by hand and pushing end-to-end to work the cleaner into the journal areas. Soak assemblies for 15 minutes.

5. Saturate the cleaning brush with solvent and scrub between the bores and valve plates. Apply some pressure on the brush while scrubbing, concentrating on the area where the shaft meets the housing journal.

6. Spray cleaner on the bores, plates, and shaft as needed to wash away any residue.

7. Use shop air to blow away remaining residue. Concentrate on blowing the residue out of the shaft/journal area.

8. The shaft should now rotate freely without sticking or binding.

NOTE: If the IMRC assemblies have been properly cleaned following the procedure and still do not rotate freely, replace complete IMRC assemblies.

9. Install IMRC assemblies.