Contents Section: Climate Control System - General Information All sections

Connect Ford Explorer Sport Trac I

Climate Control System - General Information 16 illustrations ~706 words

Connect

  1. Clean all dirt or foreign material from the fittings.
  2. 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.
  3. 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.
  4. Assemble the male and female fittings together.

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Scheme 175: Special Tools

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Scheme 176: Refrigerant System Tests

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Scheme 182
  1. 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) .
  2. Adjust the climate controls for maximum cooling. Start the engine. Select MAX A/C operation. Set the blower motor speed to maximum.
  3. Stabilize the in-vehicle temperature at 21-27°C (70-80°F).
  4. Maintain the engine speed at 1,500 RPM.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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

Scheme 183: AIR CONDITIONING (A/C) CLUTCH AIR GAP ADJUSTMENT
  1. 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).
  2. 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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Scheme 184: Special Tools

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Scheme 185: Manifold Gauge Set Connection

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Scheme 189
  1. 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.
  2. Remove the A/C charging valve cap (19D702) from the low-pressure service gauge port valve.
  3. Remove the A/C charging valve cap from the high-pressure service gauge port valve.
  4. 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.
  5. 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.

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Scheme 190: Special Tools