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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1220 (Engine Mechanical - 3.1L (On-Vehicle)) >> Repair Instructions >> Engine Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE .
  2. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .
  3. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .
  4. Remove the throttle body air inlet duct and the air cleaner assembly. Refer to AIR CLEANER ASSEMBLY .
  5. Remove the hood. Refer to HOOD REPLACEMENT .
  6. Remove the engine mount struts. Refer to Engine Mount Strut Replacement .
    Fig 1: Engine Mount Lower Nuts
    G01702726Courtesy of GENERAL MOTORS CORP.
  7. Remove the drive belt. Refer to Drive Belt Replacement .
  8. Disconnect the following electrical connectors:
    • Knock sensor
    • Camshaft position (CMP) sensor
    • Crankshaft position (CKP) sensor
    • Heated oxygen (HO2S) sensor
    • Manifold absolute pressure (MAP) sensor
    • Exhaust gas recirculation (EGR) valve
    • Evaporative emissions (EVAP) canister purge solenoid
    • Throttle position (TP) sensor
    • Idle air control (IAC) valve
    • Ignition coil
    • Body wiring harness-to-engine harness
  9. Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
  10. Remove the 3-way catalytic converter pipe from the right exhaust manifold. Refer to CATALYTIC CONVERTER REPLACEMENT (3.1L) or CATALYTIC CONVERTER REPLACEMENT (3.8L) .
  11. Remove the engine wiring harness grounds from the transaxle.
  12. Remove the engine mount lower nuts.
  13. Remove the torque converter covers.
  14. Remove the starter motor. Refer to STARTER MOTOR .
  15. Remove the A/C compressor. DO NOT discharge the A/C system. Support the compressor. Refer to COMPRESSOR REPLACEMENT (3.1 L) or COMPRESSOR REPLACEMENT (3.8L) .
  16. Remove the torque converter bolts.
  17. Remove the transaxle brace. Refer to TRANSAXLE BRACE .
  18. Remove the lower transaxle-to-engine bolt (6) and stud (1).
  19. Remove the radiator outlet hose from the engine. Refer to RADIATOR HOSE REPLACEMENT - OUTLET (3.1 L) or RADIATOR HOSE REPLACEMENT - OUTLET (3.8L) .
  20. Lower the vehicle and support the transaxle.
  21. Remove the accelerator control and the cruise control cable with the bracket from the throttle body.
  22. Remove the heater outlet and inlet hoses from the engine.
  23. Remove the vacuum hoses from the upper intake manifold.
  24. Remove the brake booster vacuum hose from the upper intake manifold.
  25. Remove the fuel lines from the fuel rail. Refer to FUEL LINE DISCONNECT FITTINGS .
  26. Remove the radiator inlet hose from the engine. Refer to RADIATOR HOSE REPLACEMENT - INLET (3.1 L) or RADIATOR HOSE REPLACEMENT - INLET (3.8L) .
  27. Remove the power steering pump and reposition. Refer to POWER STEERING PUMP REPLACEMENT (3.8L) or POWER STEERING PUMP REPLACEMENT (3.1 L) .
  28. Install the engine lifting device to the engine.
    Fig 2: Upper Transaxle To Engine Bolts
    G01702727Courtesy of GENERAL MOTORS CORP.
  29. Remove the upper transaxle-to-engine bolts (3,4,5) and stud (2).
  30. Remove the engine from the vehicle.
  31. Remove the flywheel. Refer to Engine Flywheel Replacement .
  32. Install the engine to the engine stand.
  33. Remove the generator and the generator bracket. Refer to GENERATOR .
  34. Remove the engine mount bracket. Refer to Engine Mount Strut Replacement .
  35. Remove the drive belt tensioner. Refer to Drive Belt Tensioner Replacement .
  36. Remove the ignition control module. Refer to IGNITION COILS .
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