This procedure covers removal and replacement of the throttle body on a 2011-2014 Ford F-150 with the 5.0L Coyote V8 engine, including air intake removal and electrical connections.

Warnings

Tools required

Parts

• Throttle body gasket × 1 — Use OEM specification
• Throttle body assembly × 1 — Motorcraft CM-5229 or equivalent

Preparation

1. Ensure engine is completely cool to the touch
2. Park vehicle on level ground and engage parking brake
3. Open hood and secure with prop rod
4. Disconnect negative battery cable and wait 2 minutes for system capacitors to discharge

Procedure

1. 1

   Remove engine cover
   Grasp the engine cover firmly at both sides and pull straight upward to disengage the mounting grommets. The cover is not bolted and relies on friction-fit grommets. Set the cover aside in a clean area.
2. 2

   Disconnect air intake tube
   Locate the air intake tube connecting the air filter housing to the throttle body. Loosen the hose clamp at the throttle body end using a flat blade screwdriver or 8mm socket. Disconnect the Mass Air Flow (MAF) sensor electrical connector by pressing the release tab and pulling straight out. Loosen the clamp at the air box end and remove the entire intake tube.
   Torque spec

   Air Intake Hose Clamps3 Nm (2 lb-ft)
3. 3

   Disconnect throttle body electrical connector
   Locate the Throttle Position Sensor (TPS) electrical connector on the driver side of the throttle body. Press down on the gray locking tab while pulling the connector straight back to disconnect. Do not pull on the wiring; use only the connector body.
4. 4

   Disconnect PCV hose and brake booster vacuum line
   Disconnect the PCV fresh air hose from the passenger side of the throttle body by squeezing the quick-disconnect tabs and pulling away. Disconnect the brake booster vacuum line from the intake manifold near the throttle body using the same technique. Note the routing for reinstallation.
5. 5

   Remove throttle body mounting bolts
   Using a 10mm socket, remove the four throttle body mounting bolts in a cross-pattern (start with top-left, then bottom-right, then top-right, then bottom-left). Keep bolts organized as they will be reused.
   Torque spec

   Throttle Body Bolts10 Nm (7 lb-ft)
6. 6

   Remove throttle body and gasket
   Carefully pull the throttle body straight away from the intake manifold. It may require slight wiggling due to the gasket seal. Once removed, carefully remove and discard the old gasket from the intake manifold surface. Use a shop towel to clean any debris from the intake manifold opening, being extremely careful not to drop anything into the manifold.
   ⚠Cover the intake manifold opening with a clean shop towel to prevent debris from entering the engine.
7. 7

   Inspect and clean mating surfaces
   Inspect the intake manifold gasket surface for damage or debris. Clean thoroughly with a shop towel. If cleaning the old throttle body for reuse, spray throttle body cleaner on the bore and blade, wiping clean with shop towels. Do not force the throttle blade open during cleaning.
8. 8

   Install new gasket and position throttle body
   Remove the protective covering from the intake manifold opening. Position the new throttle body gasket onto the intake manifold, aligning the bolt holes. Carefully position the new or cleaned throttle body onto the gasket, ensuring proper alignment with all four mounting bolt holes.
9. 9

   Install and torque throttle body bolts
   Hand-thread all four throttle body mounting bolts to prevent cross-threading. Using a torque wrench, tighten the bolts in a cross-pattern to the specified torque value. First pass at 50% torque, second pass at 100% torque to ensure even gasket compression.
   Torque spec

   Throttle Body Bolts10 Nm (7 lb-ft)
10. 10

    Reconnect vacuum lines and electrical connector
    Reconnect the brake booster vacuum line and PCV fresh air hose to their respective ports, ensuring both quick-disconnect fittings click into place. Reconnect the TPS electrical connector to the throttle body, ensuring the locking tab clicks securely.
11. 11

    Reinstall air intake tube
    Position the air intake tube between the air filter housing and throttle body. Ensure proper seating on both ends. Reconnect the MAF sensor electrical connector. Tighten both hose clamps to the specified torque, starting with the air box end, then the throttle body end.
    Torque spec

    Air Intake Hose Clamps3 Nm (2 lb-ft)
12. 12

    Reinstall engine cover and reconnect battery
    Align the engine cover grommets with the mounting posts on the valve covers and press down firmly until all grommets are seated. Reconnect the negative battery cable and tighten securely.

Reassembly

1. Ensure all electrical connectors are fully seated with locking tabs engaged
2. Verify all vacuum lines are properly connected and routed as originally configured
3. Double-check that all hose clamps are tightened to specification

Verification

• Start the engine and allow it to idle; initial idle may be rough for 30-60 seconds while the ECU relearns idle parameters
• Check for vacuum leaks by listening for hissing sounds around the throttle body and intake connections
• Verify smooth throttle response by gently pressing the accelerator pedal with no hesitation or surging
• Scan for diagnostic trouble codes using an OBD-II scanner; no throttle-related codes should be present
• Test drive the vehicle to confirm normal acceleration and idle quality; perform several gentle acceleration cycles to allow ECU adaptation

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