Tune-Up - Major

Complete major tune-up including spark plugs, ignition coils, air filter, cabin filter, fuel filter, PCV valve, throttle body cleaning, and engine oil/filter change for the 5.0L Coyote V8.

Warnings

Tools required

Parts

• Spark plugs (Motorcraft SP-534 or equivalent) × 8 — SP-534
• Ignition coils (Set of 8) × 8 — DG-511 or OEM
• Engine air filter × 1 — FA-1927 or OEM
• Cabin air filter × 1 — FP-67 or OEM
• Engine oil filter × 1 — FL-820S or OEM
• Oil drain plug crush washer × 1 — Use OEM specification
• PCV valve × 1 — Use OEM specification
• Fuel filter (in-tank with pump module) × 1 — Use OEM specification

Fluids

• Motorcraft 5W-20 Synthetic Blend — 7.5 qt

Preparation

1. Park vehicle on level surface and engage parking brake
2. Allow engine to cool completely (minimum 2 hours if previously running)
3. Open hood and secure with prop rod
4. Disconnect negative battery terminal and isolate cable
5. Remove engine cover by pulling upward on integrated grommets
6. Gather all tools, parts, and fluids in work area
7. Verify spark plug gap on new plugs (0.051-0.057 inches for this application)

Procedure

1. 1

   Remove Engine Air Intake System
   Disconnect the mass airflow sensor electrical connector. Release the air box clips on both sides of the air filter housing. Loosen the hose clamp at the throttle body and remove the entire air intake tube assembly. Remove the air filter housing cover and extract the old air filter element. Inspect housing for debris or contamination.
   Torque spec

   Air Box Clips5 Nm (4 lb-ft)
2. 2

   Remove Ignition Coils
   Starting with cylinder 1 (passenger side front), disconnect the electrical connector from each ignition coil by pressing the release tab and pulling straight up. Remove the single bolt securing each coil using a 7mm socket. Carefully pull each coil straight up with a slight twisting motion to break the seal. Mark or photograph coil positions if they are not identical. Inspect coil boots for cracks or carbon tracking.
   Torque spec

   Mounting Bolts34 Nm (25 lb-ft)
3. 3

   Remove and Inspect Spark Plugs
   Use compressed air or a clean rag to remove debris from around each spark plug well before removal. Using a 5/8" spark plug socket with extension, carefully remove each spark plug. Inspect old plugs for wear patterns, electrode erosion, and proper gap wear. Note any unusual conditions (oil fouling, excessive carbon, etc.) which may indicate other engine issues. Keep plugs organized by cylinder if diagnosis is needed.
   ⚠Do not allow debris to fall into spark plug holes. Foreign material can cause catastrophic engine damage.
4. 4

   Install New Spark Plugs
   Verify new spark plugs are gapped to 0.051-0.057 inches. Apply a small amount of anti-seize compound to the threads (avoid getting any on the electrode). Thread each plug by hand into the cylinder head to prevent cross-threading. Torque plugs to 15 Nm (11 lb-ft) using the spark plug socket and torque wrench. Do not over-torque as the cylinder heads are aluminum.
   ⚠Cross-threading spark plugs in aluminum heads will require costly head repair. Always start threads by hand.
5. 5

   Install New Ignition Coils
   Apply a thin coat of dielectric grease to the inside of each new coil boot. Align each coil with its spark plug and press down firmly until fully seated. Install the mounting bolt for each coil and torque to specification. Reconnect each electrical connector, ensuring it clicks securely into place. Verify each coil is properly seated and secured before moving to the next cylinder.
   Torque spec

   Mounting Bolts34 Nm (25 lb-ft)
6. 6

   Replace PCV Valve
   Locate the PCV valve on the passenger side valve cover, integrated into the valley cover. Disconnect the hose from the PCV valve by squeezing the quick-connect fitting. Twist and pull the old PCV valve from its grommet. Install the new PCV valve by pushing firmly into the grommet until seated. Reconnect the hose, ensuring the quick-connect clicks into place.
   ℹ️A failed PCV valve can cause rough idle, increased oil consumption, and poor emissions performance.
7. 7

   Clean Throttle Body
   With the air intake removed, the throttle body is accessible. Spray throttle body cleaner onto a clean shop towel (never spray directly into throttle body with engine off). Wipe the throttle plate and bore clean, removing all carbon deposits. Manually open the throttle plate slightly to clean behind it. Use additional clean towels to remove all residue. Allow to air dry completely before reassembly.
   ⚠Do not force the throttle plate open beyond its normal range of motion. The electronic throttle control is delicate.
8. 8

   Install New Engine Air Filter
   Wipe out the air filter housing with a clean towel to remove any debris. Install the new air filter element, ensuring it is properly seated in the housing with the arrow or "UP" marking facing the correct direction. Replace the housing cover and secure all air box clips. Reconnect the intake tube to the throttle body and tighten the hose clamp securely. Reconnect the mass airflow sensor connector.
   Torque spec

   Air Box Clips5 Nm (4 lb-ft)
9. 9

   Replace Cabin Air Filter
   Open the glove box and remove contents. Squeeze the sides of the glove box inward to release the stops and lower it fully. Remove the cabin air filter access door by pressing the release tabs. Slide out the old cabin air filter, noting the airflow direction arrow. Install the new filter with the arrow pointing in the same direction (toward the rear of vehicle). Replace the access door and return the glove box to normal position.
10. 10

    Drain Engine Oil
    Position the oil drain pan beneath the oil drain plug on the passenger side of the oil pan. Using a 15mm socket, loosen and remove the drain plug. Allow oil to drain completely (approximately 10-15 minutes). Inspect the drain plug threads and sealing surface for damage. Discard the old crush washer. Clean the drain plug and install a new crush washer. Thread the drain plug by hand, then torque to specification.
    ⚠Used engine oil may be hot and can cause burns. Wear appropriate gloves and avoid skin contact.
    Torque spec

    Oil Drain Plug35 Nm (26 lb-ft)
11. 11

    Replace Oil Filter
    Move the drain pan beneath the oil filter location (front passenger side of engine, above the frame rail). Use the oil filter wrench to loosen and remove the old oil filter. Allow residual oil to drain. Clean the filter mounting surface on the engine block with a clean towel. Apply a light coat of clean engine oil to the gasket of the new filter. Thread the new filter on by hand until the gasket contacts the mounting surface, then tighten an additional 3/4 turn. Do not use a wrench to install.
    ℹ️Over-tightening the oil filter can damage the gasket and cause leaks. Hand-tight plus 3/4 turn is correct.
12. 12

    Refill Engine Oil
    Using a funnel, add 7.0 quarts of Motorcraft 5W-20 Synthetic Blend oil through the oil filler cap on the driver side valve cover. Wait 2 minutes for oil to settle, then check the dipstick. Add the remaining 0.5 quarts gradually to bring the level to the MAX mark. Do not overfill. Install the oil filler cap securely.
    ⚠Overfilling engine oil can cause foaming, loss of oil pressure, and catalytic converter damage. Maintain proper level.
13. 13

    Reconnect Battery and Install Engine Cover
    Reconnect the negative battery terminal and tighten securely. Align the engine cover with the grommets on the valve covers and engine. Press down firmly until all grommets are seated and the cover is secure.

Reassembly

1. Verify all electrical connectors are properly seated and locked
2. Confirm air intake system is fully assembled with no loose clamps or connections
3. Double-check that all tools have been removed from engine bay
4. Verify oil drain plug and filter are properly installed with no leaks visible
5. Ensure engine cover is fully seated on all mounting points

Verification

• Start the engine and allow it to idle. Listen for any unusual noises or misfires
• Verify no warning lights are illuminated on the instrument cluster
• Check for oil leaks around the drain plug and oil filter after 1-2 minutes of running
• Rev engine gently to 2000 RPM and verify smooth operation with no hesitation or misfire
• Turn engine off and recheck oil level after 5 minutes. Top off if needed to MAX mark
• Test drive vehicle for 10-15 minutes, verifying normal acceleration, idle quality, and throttle response
• After test drive, perform final inspection for any fluid leaks or loose components
• Reset oil life monitor through instrument cluster menu if equipped

More procedures for this vehicle