This procedure covers the removal and replacement of the AC receiver/drier on a 2011-2014 Ford F-150 with 3.5L EcoBoost engine, including AC system evacuation, component replacement, and recharge.

Warnings

Tools required

Parts

• AC receiver/drier assembly × 1 — Use OEM specification
• AC line O-ring kit × 1 — Assorted sizes for Ford AC systems
• PAG 46 refrigerant oil × 1 — Ford-approved PAG oil for R-134a systems
• R-134a refrigerant × 1 — Verify system capacity on underhood label

Preparation

1. Ensure engine is cold and vehicle is parked on level ground
2. Disconnect negative battery cable and wait 2 minutes
3. Verify AC system refrigerant type on underhood label (should be R-134a)
4. Connect AC recovery machine to service ports
5. Wear safety glasses and gloves for all AC work

Procedure

1. 1

   Recover AC refrigerant
   Using certified AC recovery equipment, connect to both high and low side service ports. Follow machine instructions to completely recover all refrigerant from the system. Record the amount recovered for reference during recharge. Allow system to equalize to atmospheric pressure before proceeding.
   ⚠️Never vent refrigerant to atmosphere. This is illegal and environmentally harmful.
2. 2

   Remove front grille (if needed for access)
   For improved access to the receiver/drier, remove the front grille assembly. Remove the retaining screws along the top and release the lower clips by pulling firmly. Set grille aside in a safe location. On some model years, access may be sufficient without grille removal.
3. 3

   Locate and inspect receiver/drier
   Locate the receiver/drier assembly on the passenger side, typically mounted to the condenser or frame rail near the right headlight area. Inspect the AC lines connected to it and note their routing. The receiver/drier will have two AC line connections (inlet from condenser and outlet to evaporator).
4. 4

   Disconnect AC lines from receiver/drier
   Using appropriate AC line disconnect tools, carefully disconnect both AC lines from the receiver/drier. There will be a spring-lock coupling or threaded fitting on each connection. For spring-lock couplings, insert the disconnect tool over the line and push toward the fitting while pulling the line away. For threaded fittings, use a backup wrench to prevent line twisting. Immediately cap all open ports to prevent contamination.
   ⚠Residual refrigerant or oil may escape when lines are disconnected. Wear eye protection.
5. 5

   Remove receiver/drier mounting hardware
   Remove the bolts securing the receiver/drier to its mounting bracket. These are typically two bolts holding a clamp-style bracket. Support the receiver/drier while removing the final bolt to prevent it from falling. Remove the receiver/drier from the vehicle.
   Torque spec

   Receiver Drier Bolts10 Nm (7 lb-ft)
6. 6

   Prepare new receiver/drier
   Remove the new receiver/drier from its sealed packaging only when ready to install (moisture absorption begins immediately). Do not remove port caps until ready to connect lines. Measure and add the appropriate amount of PAG 46 refrigerant oil to the new receiver/drier as specified by the replacement unit instructions (typically 1-2 oz unless pre-filled).
   ℹ️Minimize exposure time to atmosphere. The desiccant inside begins absorbing moisture immediately upon opening.
7. 7

   Install new receiver/drier
   Position the new receiver/drier in the mounting bracket, ensuring proper orientation with inlet and outlet ports aligned with their respective AC lines. Install the mounting clamp and bolts. Torque mounting bolts to specification. Do not fully tighten AC line fittings yet.
   Torque spec

   Receiver Drier Bolts10 Nm (7 lb-ft)
8. 8

   Install new O-rings and reconnect AC lines
   Remove old O-rings from the AC line fittings and discard. Install new O-rings from the kit, ensuring correct size for each fitting. Lightly coat new O-rings with clean PAG 46 refrigerant oil. Remove caps from receiver/drier ports and immediately connect AC lines. For spring-lock couplings, push firmly until you hear/feel the lock engage and verify by pulling back. For threaded fittings, hand-tighten first, then torque to specification using a backup wrench.
   ⚠Do not reuse old O-rings. Always use new O-rings designed for AC systems.
   Torque spec

   AC Line Fittings20 Nm (15 lb-ft)
9. 9

   Reinstall grille assembly
   If the front grille was removed, reinstall it by engaging the lower clips first, then securing the upper retaining screws. Ensure all clips are fully seated.
10. 10

    Evacuate AC system
    Connect AC service machine to both high and low side service ports. Run a vacuum on the system for a minimum of 30 minutes to remove all air and moisture. The system should pull down to 29+ inches of mercury. After evacuation, close valves and monitor vacuum gauge for 10 minutes to verify system holds vacuum (no leaks).
    ⚠If system does not hold vacuum, there is a leak that must be found and repaired before recharging.
11. 11

    Recharge AC system
    Using the AC service machine, recharge the system with the correct amount of R-134a refrigerant as specified on the underhood label (typically 1.75-2.0 lbs for this system). Charge through the low-side port with engine running and AC on MAX/recirculate. Monitor pressures during charging. Add refrigerant slowly and check pressures frequently.
12. 12

    Reconnect battery and test system
    Reconnect the negative battery cable. Start the engine and turn AC to MAX cold with blower on high. Allow system to run for 5 minutes. Check for proper compressor engagement, listen for unusual noises, and verify cold air output at vents. Target vent temperature should be 38-45°F with ambient temperature around 75-80°F.

Reassembly

1. Ensure all AC line fittings are torqued to specification and verified with backup wrench
2. Verify grille assembly is fully secured with all clips engaged
3. Inspect entire AC system for signs of refrigerant leaks using leak detector
4. Clean any spilled refrigerant oil from engine bay components

Verification

• Start engine and run AC system through all modes (MAX, NORM, defrost) to verify proper operation
• Check AC pressure readings: Low side should be 25-45 PSI, high side should be 200-250 PSI at idle with 75-80°F ambient temperature
• Verify vent temperature is 38-45°F with AC on MAX and blower on high
• Inspect all AC line connections for leaks using electronic or UV leak detector
• Listen for abnormal compressor noises or cycling issues
• Verify no warning lights on instrument cluster related to AC system
• Test AC performance after a 15-minute drive to ensure system maintains cooling

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