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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1194 (Automatic Transmission - 4L60-E/4L65-E (Service & Replacement)) >> Repair Instructions >> Oil Cooler Line Replacement (Front) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Position the front wheels straight ahead, remove the ignition key to lock the steering column.
  2. Disconnect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE in Engine Electrical.
  3. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM in Engine Cooling.
  4. Raise and suitably support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
    Fig 1: Disconnecting Negative Battery Cable
    G01972943Courtesy of GENERAL MOTORS CORP.
  5. Place a drain pan under the vehicle to catch any fluid.
  6. Reposition the plastic retainer, in order to gain access to the lower transmission oil cooler (TOC) connection.
  7. Using J 44827  , disconnect the lower TOC line from the oil cooler.
  8. Lower the vehicle; leave the vehicle on the hoist.
  9. Reposition the plastic retainer, in order to gain access to the upper TOC connection.
  10. Using J 44827  disconnect the upper TOC line from the oil cooler.
  11. Remove the air cleaner assembly. Refer to AIR CLEANER ASSEMBLY REPLACEMENT in Engine Controls - 5.7L.
  12. Remove the upper and lower radiator support. Refer to RADIATOR SUPPORT REPLACEMENT in Engine Cooling.
    Fig 2: Disconnecting Upper TOC Line From Oil Cooler
    G01972944Courtesy of GENERAL MOTORS CORP.
  13. Recover the refrigerant from the air conditioning (A/C) system. Refer to REFRIGERANT RECOVERY AND RECHARGING in Heating, Ventilation, and Air Conditioning.
  14. Remove the front evaporator tube to condenser bolt.

    Important:  Cap or tape the opening in the front evaporator tube and condenser immediately to prevent contamination.

  15. Disconnect the front evaporator tube from the condenser.
    Fig 3: Disconnecting Front Evaporator Tube From Condenser
    G01972945Courtesy of GENERAL MOTORS CORP.
  16. Using a back-up wrench on the condenser fitting (2), loosen the compressor hose fitting (1) from the condenser.
    Fig 4: Loosening Compressor Hose Fitting From Condenser
    G01972946Courtesy of GENERAL MOTORS CORP.
  17. Disconnect the compressor hose from the condenser.
  18. Discard the O-ring seal and cap or tape the compressor hose and condenser openings.
    Fig 5: Disconnecting Compressor Hose From Condenser
    G01972947Courtesy of GENERAL MOTORS CORP.
  19. Using J 38185  , release and reposition the coolant surge tank upper hose clamp away from the radiator inlet.
  20. Separate the surge tank upper hose from the radiator inlet.
    Fig 6: Separating Surge Tank Upper Hose From Radiator Inlet
    G01972948Courtesy of GENERAL MOTORS CORP.
  21. Using J 38185  , release and reposition the radiator inlet hose clamp away from the radiator inlet.
  22. Separate the radiator inlet hose from the radiator inlet.
    Fig 7: Separating Radiator Inlet Hose From Radiator Inlet
    G01972949Courtesy of GENERAL MOTORS CORP.
  23. Using J 38185  , release and reposition the radiator outlet hose clamp away from the radiator outlet.
  24. Separate the radiator outlet hose from the radiator outlet.
    Fig 8: Separating Radiator Outlet Hose From Radiator Outlet
    G01972950Courtesy of GENERAL MOTORS CORP.
  25. Carefully pivot the A/C condenser with the radiator forward and tie off to support the assembly.
    Fig 9: Pivoting A/C Condenser With Radiator Forward & Tie Off To Support Assembly
    G01972951Courtesy of GENERAL MOTORS CORP.
  26. Remove the steering column intermediate shaft lower coupling shield.
  27. Match-mark the intermediate shaft lower coupling to the power steering (PS) gear to ensure correct orientation upon installation.
  28. Remove the intermediate shaft lower coupling bolt.
  29. Disconnect the intermediate shaft lower coupling from the PS gear.

    Slide the intermediate shaft lower coupling off of the PS gear steering shaft.

    Fig 10: Disconnecting Intermediate Shaft Lower Coupling From PS Gear
    G01972952Courtesy of GENERAL MOTORS CORP.
  30. Remove the PS cooler retaining bolts.
    Fig 11: PS Cooler Retaining Bolts
    G01972953Courtesy of GENERAL MOTORS CORP.
  31. Remove the brake pressure modulator valve (BPMV) bracket. Refer to BRAKE PRESSURE MODULATOR VALVE (BPMV) REPLACEMENT in Antilock Brake System.
  32. Remove the PS gear mounting bolts and nuts.
  33. Release the PS gear and cooler from the front suspension crossmember, then slave the gear and cooler forward.
  34. Remove the A/C compressor bracket. Refer to COMPRESSOR MOUNTING BRACKET REPLACEMENT in Heating, Ventilation, and Air Conditioning.
  35. Remove the generator. Refer to GENERATOR in Engine Electrical.
  36. Install the J 41803  and the J 28467-B  in order to support the engine.
  37. Remove the right hand engine mount (and bracket). Refer to ENGINE MOUNT BRACKET REPLACEMENT--RIGHT in Engine Mechanical - 5.7L.
    Fig 12: PS Gear Mounting Bolts & Nuts
    G01972954Courtesy of GENERAL MOTORS CORP.
  38. Remove the TOC front pipe front clip.
  39. Raise the vehicle.
    Fig 13: TOC Front Pipe Front Clip
    G01972955Courtesy of GENERAL MOTORS CORP.
  40. Remove the TOC front pipe front retaining clamp bolt and retaining clamp.
    Fig 14: TOC Front Pipe Front Retaining Clamp Bolt & Retaining Clamp
    G01972956Courtesy of GENERAL MOTORS CORP.
  41. Remove the TOC front pipe rear retaining clamp bolt and retaining clamp.
  42. Disconnect the TOC front pipe fittings from the junction fittings at the engine flywheel housing, then cap the pipe fittings and plug the junction fittings to prevent contamination.
  43. Lower the vehicle; leave the vehicle slightly above the ground.
  44. Finesse the TOC front pipes out of the vehicle (through the top).
    Fig 15: TOC Front Pipe Rear Retaining Clamp Bolt & Retaining Clamp
    G01972957Courtesy of GENERAL MOTORS CORP.
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