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 CONDITIONINGSERVICE AND REPAIRAFTER REPAIR PROCEDURES
1999 Ford F 150 2WD Pickup V6-4.2L VIN 2
After Repair Procedures
1999 Ford F 150 2WD Pickup V6-4.2L VIN 2SECTION After Repair Procedures
CAUTION: To prevent refrigerant system contamination and possible failure of the replacement A/C compressor, perform the following procedures.
1. Remove and discard the A/C evaporator core orifice.
NOTE: A dirty A/C evaporator core orifice or a condenser to evaporator tube containing black refrigerant oil and particles indicates that the A/C compressor has failed and must be replaced.
2. Remove the A/C compressor.
- Drain the residual refrigerant oil from the A/C compressor and measure the volume for proper system oil matching. Refrigerant Oil Addition
3. Remove the suction accumulator/drier.
- Drain the residual refrigerant oil from the suction accumulator/drier and measure the volume for proper oil system matching. Refrigerant Oil Addition
NOTE: The suction accumulator/drier and A/C evaporator core orifice cannot be cleaned and must be replaced.
4. Perform an A/C system flushing or filtering procedure:
- If A/C system flushing equipment is available, clean the A/C evaporator core and the A/C condenser core by flushing. A/C System Flushing
- If A/C system flushing equipment is not available, perform a system filtering procedure. A/C System Filtering
NOTE: System flushing is the preferred method of cleaning. However, if flushing equipment is not available, perform system filtering.
5. Install the replacement A/C compressor.
6. Install the replacement suction accumulator/drier.
7. Install the replacement A/C evaporator core orifice.
8. Properly oil match the system. Refrigerant Oil Addition
9. Evacuate and charge the system. Evacuation and Charging
1. Remove and discard the A/C evaporator core orifice.
NOTE: A dirty A/C evaporator core orifice or a condenser to evaporator tube containing black refrigerant oil and particles indicates that the A/C compressor has failed and must be replaced.
2. Remove the A/C compressor.
- Drain the residual refrigerant oil from the A/C compressor and measure the volume for proper system oil matching. Refrigerant Oil Addition
3. Remove the suction accumulator/drier.
- Drain the residual refrigerant oil from the suction accumulator/drier and measure the volume for proper oil system matching. Refrigerant Oil Addition
NOTE: The suction accumulator/drier and A/C evaporator core orifice cannot be cleaned and must be replaced.
4. Perform an A/C system flushing or filtering procedure:
- If A/C system flushing equipment is available, clean the A/C evaporator core and the A/C condenser core by flushing. A/C System Flushing
- If A/C system flushing equipment is not available, perform a system filtering procedure. A/C System Filtering
NOTE: System flushing is the preferred method of cleaning. However, if flushing equipment is not available, perform system filtering.
5. Install the replacement A/C compressor.
6. Install the replacement suction accumulator/drier.
7. Install the replacement A/C evaporator core orifice.
8. Properly oil match the system. Refrigerant Oil Addition
9. Evacuate and charge the system. Evacuation and Charging
RENDER: 1.0x
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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.