VVT Solenoid - Single

This procedure covers the replacement of a single Variable Valve Timing (VVT) solenoid on the 2015-2020 Ford F-150 5.0L Coyote V8 engine.

Warnings

Tools required

Parts

• VVT solenoid (intake or exhaust) × 1 — Use OEM specification
• O-ring for VVT solenoid × 1 — Usually included with solenoid

Preparation

1. Park vehicle on level ground and apply parking brake
2. Allow engine to cool completely (at least 1 hour after running)
3. If available, retrieve and record any diagnostic trouble codes related to VVT system
4. Identify which VVT solenoid needs replacement (intake/exhaust, left/right bank)
5. Gather all tools and parts before starting

Procedure

1. 1

   Disconnect battery
   Disconnect the negative battery cable using appropriate wrench. Isolate the cable end away from the battery terminal to prevent accidental reconnection during the repair.
2. 2

   Remove engine cover
   Remove the plastic engine cover by pulling upward firmly on the cover. It is retained by grommets that snap onto ball studs on the valve covers. Set the cover aside.
3. 3

   Access the VVT solenoid
   Locate the target VVT solenoid on the appropriate valve cover. The intake solenoids are typically at the front of each valve cover, and exhaust solenoids are toward the rear. You may need to move wiring harnesses or hoses slightly for access. Do not disconnect anything unnecessarily.
4. 4

   Disconnect electrical connector
   Press the locking tab on the electrical connector and pull straight out to disconnect it from the VVT solenoid. Do not pull on the wires themselves. Inspect the connector for oil contamination or corrosion.
   ⚠Oil contamination in the electrical connector may indicate a failed solenoid seal. Clean connector thoroughly before reassembly
5. 5

   Remove VVT solenoid bolt
   Using an 8mm socket with extension, remove the single bolt securing the VVT solenoid to the valve cover. Keep the bolt in a safe location for reinstallation.
   Torque spec

   VVT Solenoid Bolt10 Nm (7 lb-ft)
6. 6

   Extract VVT solenoid
   Carefully pull the VVT solenoid straight out from the valve cover. It may require a slight twisting motion to break the O-ring seal. Expect a small amount of engine oil to drain from the bore. Use shop towels to catch any drips.
7. 7

   Inspect solenoid bore and valve cover
   Inspect the solenoid bore in the valve cover for debris, sludge, or metal particles. Clean the bore opening with parts cleaner and a shop towel if necessary. Check the valve cover mating surface around the solenoid mounting area for damage or cracks.
   ℹ️Excessive sludge or debris may indicate poor oil maintenance and could affect the new solenoid. Consider an engine oil change if contamination is severe
8. 8

   Prepare new VVT solenoid
   Remove the new VVT solenoid from its packaging. Verify it matches the old solenoid in appearance and connector type. Check that the O-ring is properly seated in the solenoid groove. Lightly lubricate the O-ring with clean engine oil to ease installation.
9. 9

   Install new VVT solenoid
   Carefully insert the new VVT solenoid straight into the valve cover bore, ensuring proper alignment. Push firmly until the solenoid seats completely against the valve cover surface. Do not force or twist excessively.
10. 10

    Install and torque solenoid bolt
    Install the VVT solenoid retaining bolt and hand-tighten. Using a torque wrench, tighten the bolt to specification. Do not over-torque as this can damage the valve cover threads or crack the solenoid housing.
    Torque spec

    VVT Solenoid Bolt10 Nm (7 lb-ft)
11. 11

    Reconnect electrical connector
    Push the electrical connector firmly onto the VVT solenoid until you hear and feel a positive click. Gently tug on the connector to verify it is locked in place. Ensure no wires are pinched or stressed.
12. 12

    Reinstall engine cover
    Align the engine cover grommets with the ball studs on the valve covers and press down firmly until all grommets snap into place. Ensure the cover is secure and properly seated.
13. 13

    Reconnect battery
    Reconnect the negative battery cable to the battery terminal and tighten securely. Ensure the connection is clean and tight.

Reassembly

1. Ensure all electrical connectors are fully seated and locked
2. Verify no tools or shop towels were left in the engine compartment
3. Double-check that the engine cover is properly installed on all mounting points

Verification

• Start the engine and verify it runs smoothly without rough idle or unusual noises
• Allow engine to reach operating temperature and verify no oil leaks around the VVT solenoid
• If an OBD-II scanner is available, clear any stored fault codes and verify no new VVT-related codes appear
• Test drive the vehicle and monitor for check engine light. The PCM may need 1-2 drive cycles to relearn VVT parameters
• Listen for any abnormal valvetrain noises during acceleration and deceleration

Related trouble codes on this vehicle

Codes that commonly send this job to the bay — tap one for symptoms, causes, and diagnostic steps.

Chasing one of these codes and not sure which part is guilty? Ask a master mechanic about YOUR car →

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