Ford — Intake Manifold - Variable Resonance Induction System (VRIS) - Removal
Repair & overhaul
From a Ford service manual — check it applies to your exact model before use.
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Before you start
- Do not smoke or carry lighted tobacco or open flame when working on or near fuel-related components.
- Fuel in the fuel system remains under high pressure even when the engine is not running.
Procedure
- Disconnect the battery ground cable.
- Drain the coolant system.
- Loosen hose clamp and disconnect the water outlet hose.
- Remove the engine vacuum hoses.
- Disconnect the water temperature indicator sender unit electrical connectors.
- Disconnect and remove the ten ignition coils.
- Remove the drive belt.
- Remove the generator.
- Disconnect hose clamps and remove the heater water hose.
- Remove the water thermostat.
- Remove the two studs retaining the heater water return tube.
- Remove the bolts, the upper intake manifold and the intake manifold gasket; discard the gaskets.
- Pull back and remove the heater water return tube; inspect the O-rings and replace if required.
- Separate the upper and lower intake manifolds; remove the ten bolts; discard the intake manifold gasket.
- Clean all mating surfaces.
Source: Ford service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.