Connect
- Clean all dirt or foreign material from the fittings.
- Install the O-ring seal. Lubricate the O-ring seal with PAG Refrigerant Compressor Oil (R-134a Systems) F7AZ-19589-DA (Motorcraft YN-12-C) or equivalent meeting Ford specification WSH-M1C231-B.
- Lubricate the inside of the fittings with PAG Refrigerant Compressor Oil (R-134a Systems) F7AZ-19589-DA (Motorcraft YN-12-C) or equivalent meeting Ford specification WSH-M1C231-B.
- Assemble the male and female fittings together.
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- Connect the R-134a Manifold Gauge Set. For additional information, see «MANIFOLD GAUGE SET CONNECTION»(/ford/explorer-sport-trac/i-2000-2005/remont/manual-hvac-system/#climate-control-system-general-information) .
- Adjust the climate controls for maximum cooling. Start the engine. Select MAX A/C operation. Set the blower motor speed to maximum.
- Stabilize the in-vehicle temperature at 21-27°C (70-80°F).
- Maintain the engine speed at 1,500 RPM.
- Determine the compressor discharge (high) pressure. Record the ambient temperature. Record the discharge (high) pressure. NOTE: In ambient temperatures between 38-43°C (100-110°F), the system performance pressures will be the same as those for ambient temperatures shown on the chart in the 32-38°C (90-100°F) range. The system performance is acceptable when the pressure reading falls between the upper and lower limits shown.
- Determine the compressor suction (low) pressure. Record the ambient temperature. Record the suction (low) pressure. NOTE: In ambient temperatures between 38-43°C (100-110°F), the system performance pressures will be the same as those for ambient temperatures shown on the chart in the 32-38°C (90-100°F) range. The system performance is acceptable when the pressure reading falls between the upper and lower limits shown.
- Determine the A/C clutch ON time. Record the ambient temperature. Record the A/C clutch ON time in seconds. NOTE: When the ambient temperature is above 26°C (80°F), the A/C clutch may not cycle. The system performance is acceptable when the recorded time falls between the upper and lower limits shown.
- Determine the A/C clutch OFF time. Record the ambient temperature. Record the A/C clutch OFF time in seconds. NOTE: When the ambient temperature is above 26°C (80°F), the A/C clutch may not cycle. The system performance is acceptable when the recorded time falls between the upper and lower limits shown.
- Determine the total A/C clutch cycle time. Record the ambient temperature. Record the time the A/C clutch is engaged plus the time it is disengaged (time ON plus time OFF). NOTE: When the ambient temperature is above 26°C (80°F), the A/C clutch may not cycle. The system performance is acceptable when the recorded time falls between the upper and lower limits shown.
- Determine the A/C clutch cycle rate per minute. Record the ambient temperature. Record the number of A/C clutch cycles occurring in one minute. NOTE: When the ambient temperature is above 26°C (80°F), the A/C clutch may not cycle. The system performance is acceptable when the recorded number of cycles falls between the upper and lower limits shown.
- Determine the center A/C register discharge temperature. Record the ambient temperature. Record the center A/C register discharge temperature. NOTE: In ambient temperatures between 38-43°C (100-110°F), the A/C register discharge temperatures will be the same as those for ambient temperatures shown on the chart in the 32-38°C (90-100°F) range. The system performance is acceptable when the center A/C register discharge temperature falls between the upper and lower limits shown.
Scheme 183
- Check the A/C clutch air gap at three equally-spaced places between the A/C clutch hub (2884) and the A/C clutch pulley (2E884).
- Remove the A/C clutch. Add or remove spacers between the A/C clutch and the compressor shaft until clearance is within specification. For additional information, see «CLUTCH & CLUTCH FIELD COIL»(/ford/explorer-sport-trac/i-2000-2005/remont/manual-hvac-system/#air-conditioning) in AIR CONDITIONING article.
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- Turn both valves on the R-134a Manifold Gauge Set clockwise to close the low- and high-pressure hoses to the center manifold and center hose.
- Remove the A/C charging valve cap (19D702) from the low-pressure service gauge port valve.
- Remove the A/C charging valve cap from the high-pressure service gauge port valve.
- Connect the R-134a Manifold Gauge Set low-pressure hose and the R-134a low side quick disconnect to the low-pressure service gauge port valve.
- Connect the R-134a Manifold Gauge Set high-pressure hose and the R-134a high side quick disconnect to the high-pressure service gauge port valve.