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Home >> Ford >> 2011 >> F 150 4WD V6-3.7L >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Intake Manifold >> Service and Repair >> Upper Intake Manifold

Upper Intake Manifold




Upper Intake Manifold

Upper Intake Manifold (View 1 of 2)









Upper Intake Manifold (View 2 of 2)

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NOTE: Click here or refer to the on-line diagnostic/repair information to learn about using an Interactive Illustration.









Removal

1. Remove the Air Cleaner (ACL) outlet pipe. For additional information, refer to Intake Air Distribution and Filtering [1][2]Diagrams.

2. Disconnect the PCV tube quick connect coupling from the intake manifold. For additional information, refer to Fuel System - General Information Service and Repair.

3. Disconnect the Throttle Body (TB) electrical connector.
- Detach the TB electrical connector wiring harness pin-type retainer from the TB.

4. Disconnect Evaporative Emission (EVAP) tube from the EVAP canister purge valve.
- Detach the EVAP hose retainer from the intake manifold.

5. Disconnect the EVAP canister purge valve electrical connector.
- Detach the EVAP canister purge valve electrical connector wiring harness pin-type retainer.

6. Disconnect the brake booster vacuum hose from the engine.

7. Detach the wiring harness pin-type retainer from the rear of the upper intake manifold.

8. Remove the upper intake manifold support bracket bolt from the front of the RH cylinder head.

9. Loosen the 7 bolts and remove the upper intake manifold.
- Remove and discard the gaskets.

- Clean and inspect all of the sealing surfaces of the upper and lower intake manifold.

Installation

1. NOTICE: If the engine is repaired or replaced because of upper engine failure, typically including valve or piston damage, check the intake manifold for metal debris. If metal debris is found, install a new intake manifold. Failure to follow these instructions can result in engine damage.

Using new gaskets, install the upper intake manifold and tighten the 7 bolts in the sequence shown in 2 stages.

- Stage 1: Tighten to 10 Nm (89 lb-in).

- Stage 2: Tighten an additional 45 degrees.





2. Install the upper intake manifold support bracket bolt to the RH cylinder head.
- Tighten to 10 Nm (89 lb-in).

3. Attach the wiring harness pin-type retainer to the rear of the upper intake manifold.

4. Connect the brake booster vacuum hose to the engine.

5. Connect the EVAP canister purge valve electrical connector.
- Attach the EVAP canister purge valve electrical connector wiring harness pin-type retainer.

6. Connect EVAP tube to the EVAP canister purge valve.
- Attach the EVAP hose retainer to the intake manifold.

7. Connect the TB electrical connector.
- Attach the TB electrical connector wiring harness pin-type retainer to the TB.

8. Connect the PCV tube quick connect coupling to the intake manifold. For additional information, refer to Fuel System - General Information Service and Repair.

9. Install the ACL outlet pipe. For additional information, refer to Intake Air Distribution and Filtering [1][2]Diagrams.

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