Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1999F 150 2WD PICKUP V6-4.2L VIN 2REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCOMPRESSOR HVACSERVICE AND REPAIR
1999 Ford F 150 2WD Pickup V6-4.2L VIN 2
Compressor HVAC: Service and Repair
1999 Ford F 150 2WD Pickup V6-4.2L VIN 2SECTION Service and Repair
REMOVAL
CAUTION: When replacing an A/C compressor which has failed internally, perform the following procedures to prevent contamination of the refrigerant system:
- If A/C Flusher is available, perform the Flushing procedure. A/C System Flushing
- If A/C Flusher is not available, perform the Refrigerant System Filtering After A/C Component Replacement procedure. A/C System Filtering
- Replace the A/C evaporator core orifice.
1. Disconnect the battery.
2. Recover the refrigerant. Refrigerant Recovery
3. Remove the drive belt.
4. Disconnect the A/C compressor electrical connector.
5. Remove the manifold and tube assembly.
1 Remove the bolt.
2 Remove the manifold and tube assembly.
6. Remove the three bolts.
7. Remove the A/C compressor.
1 Remove the bolts.
2 Remove the A/C compressor.
INSTALLATION
1. Follow the removal procedure in reverse order.
- Service the replacement A/C compressor with the proper amount of Motorcraft YN-12c refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B.
- Lubricate the new A/C manifold O-rings with Motorcraft YN-12c refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B.
CAUTION: When replacing an A/C compressor which has failed internally, perform the following procedures to prevent contamination of the refrigerant system:
- If A/C Flusher is available, perform the Flushing procedure. A/C System Flushing
- If A/C Flusher is not available, perform the Refrigerant System Filtering After A/C Component Replacement procedure. A/C System Filtering
- Replace the A/C evaporator core orifice.
1. Disconnect the battery.
2. Recover the refrigerant. Refrigerant Recovery
3. Remove the drive belt.
4. Disconnect the A/C compressor electrical connector.
5. Remove the manifold and tube assembly.
1 Remove the bolt.
2 Remove the manifold and tube assembly.
6. Remove the three bolts.
7. Remove the A/C compressor.
1 Remove the bolts.
2 Remove the A/C compressor.
INSTALLATION
1. Follow the removal procedure in reverse order.
- Service the replacement A/C compressor with the proper amount of Motorcraft YN-12c refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B.
- Lubricate the new A/C manifold O-rings with Motorcraft YN-12c refrigerant oil or equivalent meeting Ford specification WSH-M1C231-B.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.