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Home/Pontiac/Solstice/Pontiac Solstice I (2005-2009)/Repair manual/Automatic HVAC System/Heating, Ventilation, and Air Conditioning: Maintenance
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Heating, Ventilation, and Air Conditioning: Maintenance Pontiac Solstice I

Automatic HVAC System 1 illustration ~892 words

Flushing

Tools Required

  1. J 43600 ACR 2000 Air Conditioning Service Center. See «Special Tools»(ref-267906-S11298067242007101700000) .
  2. J 45268 Flush Adapter Kit. See «Special Tools»(ref-267906-S11298067242007101700000) .
  3. J 41447 R134A A/C Tracer Dye - Box of 24. See «Special Tools»(ref-267906-S11298067242007101700000) .
  4. J 42220 Universal 12V Leak Detection Lamp. See «Special Tools»(ref-267906-S11298067242007101700000) .
IMPORTANTFlushing with the ACR 2000 is not intended to remove metal from the A/C system.

Flushing is intended to remove the following

  1. Contaminated polyalkylene glycol (PAG) oil
  2. Desiccant, following a desiccant bag failure
  3. Overcharge of PAG oil
  4. Refrigerant contamination

Scheme 31

Scheme 31
Scheme 31
  1. Recover the refrigerant. Refer to «Refrigerant Recovery and Recharging»(ref-267906-S00952295222007101700000) .
  2. Remove the thermal expansion valve (TXV). Refer to «Thermal Expansion Valve Replacement»(ref-267906-S33189746632007101700000) .
  3. Install the stud for the J 45268 kit onto the J 45268-115. See «Special Tools»(ref-267906-S11298067242007101700000) .
  4. Install the J 45268-115 in place of the TXV.
  5. Install the TXV mounting bolts. Tighten: Tighten the bolts to 7 N.m (62 lb in).
  6. Connect the evaporator line to the J 45268-115.
  7. Install the TXV block fitting nut. Tighten: Tighten the bolts to 27 N.m (20 lb ft).
  8. Remove the A/C compressor. Refer to «Compressor Replacement (LE5)»(ref-267906-S39418889892007101700000) or «Compressor Replacement (LNF)»(ref-267906-S08949139872007101700000) .
  9. Install J 45268-10 to the A/C compressor hose assembly.
  10. Install the nut and bolt from the J 45268 kit to the J 45268-10 and compressor hose assembly. See «Special Tools»(ref-267906-S11298067242007101700000) . Tighten: Tighten the bolts to 27 N.m (20 lb ft).
  11. Forward flow refrigerant flushing is recommended for contaminated refrigerant or PAG oil. Perform the following procedure: IMPORTANT: The filter inside J 45268-1 is serviceable. Remove and discard the check valve from the filter. Service the filter with ACDelco P/N GF 470, before each flush. Install the port plugs J 45268-9 onto the J 45268-10. Install the fitting J 45268-7 onto the J 45268-10. Install the fitting J 45268-8 onto the J 45268-10. Connect J 45268-1 flush filter to the suction port of J 45268-7 flush adapter. Connect the blue hose from the J 43600 to the J 45268-1 flush filter adapter. See «Special Tools»(ref-267906-S11298067242007101700000) . Connect the red hose from the J 43600 to the J 45268-8 flush adapter. See «Special Tools»(ref-267906-S11298067242007101700000) .
  12. Reverse flow refrigerant flush is recommended for desiccant bag failure. Replace the receiver dehydrator when the A/C flush is complete and perform the following procedure: IMPORTANT: The filter inside J 45268-1 is serviceable. Remove and discard the check valve from the filter. Service the filter with ACDelco P/N GF 470, before each flush. Install the port plugs J 45268-9 onto the J 45268-10. Install the fitting J 45268-7 onto the J 45268-10. Install the fitting J 45268-8 onto the J 45268-10. Connect J 45268-1 flush filter to the discharge port of J 45268-7 flush adapter. Connect the blue hose from J 43600 to the J 45268-1 flush filter adapter. See «Special Tools»(ref-267906-S11298067242007101700000) . Connect the red hose from J 43600 to the J 45268-8 flush adapter. See «Special Tools»(ref-267906-S11298067242007101700000) .
  13. Flush the A/C system. Follow the instructions supplied with the J 43600 . See «Special Tools»(ref-267906-S11298067242007101700000) .
  14. Disconnect the red hose on the J 43600 from the J 45268-10. See «Special Tools»(ref-267906-S11298067242007101700000) .
  15. Disconnect the blue hose on the J 43600 from the J 45268-1. See «Special Tools»(ref-267906-S11298067242007101700000) .
  16. Remove J 45268-1 from the J 45268-10.
  17. Remove the J 45268-10 from the A/C compressor hose assembly.
  18. If you will reinstall the removed A/C compressor, perform the following procedure: Remove the A/C compressor drain plug. Drain the PAG oil from the A/C compressor. Rotate the compressor input shaft to assist in draining the PAG oil from the compressor. Install the A/C compressor drain plug. Tighten: Tighten the drain plug to 16 N.m (12 lb ft). IMPORTANT: Flushing will remove the fluorescent leak detection dye from the A/C system. Add one bottle of J 41447 . See «Special Tools»(ref-267906-S11298067242007101700000) . Add the total system capacity of PAG oil to the A/C compressor. Refer to «Refrigerant System Capacities»(ref-267906-S01961911532007101700000) .
  19. If you will replace the A/C compressor after flushing the system, perform the following procedure: Determine if the new service compressor is shipped with PAG oil. Refer to the «Refrigerant System Capacities»(ref-267906-S01961911532007101700000) . If the service compressor is shipped with PAG oil, DO NOT drain the new PAG oil from the compressor. Deduct the amount of PAG oil shipped with the service compressor from the amount of PAG oil listed in the capacities table. Refer to «Refrigerant System Capacities»(ref-267906-S01961911532007101700000) . Add the calculated amount to the compressor, as needed. IMPORTANT: Flushing will remove the fluorescent leak detection dye from the A/C system. Add one bottle of J 41447 . See «Special Tools»(ref-267906-S11298067242007101700000) .
  20. Install the A/C compressor. Refer to «Compressor Replacement (LE5)»(ref-267906-S39418889892007101700000) or «Compressor Replacement (LNF)»(ref-267906-S08949139872007101700000) .
  21. Remove J 45268-115.
  22. Inspect the TXV for debris. Clean or replace as needed.
  23. Install the TXV. Refer to «Thermal Expansion Valve Replacement»(ref-267906-S33189746632007101700000) .
  24. Evacuate and recharge the A/C system. Refer to «Refrigerant Recovery and Recharging»(ref-267906-S00952295222007101700000) .
  25. Leak test the fittings using J 42220 . See «Special Tools»(ref-267906-S11298067242007101700000) .

Draining Procedure

  1. Remove the compressor crankcase oil drain plug and drain the crankcase into a clean, graduated container.
  2. Drain the oil from both the suction and discharge ports of the removed compressor into the same container. Rotate the compressor shaft to assist in draining the compressor.
  3. Measure and record the amount of oil drained from the removed compressor. This measurement will be used during installation of the replacement compressor.
  4. Properly discard the used refrigerant oil.

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