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How to Replace 3.8L Engine on Buick LaCrosse?

The details to Replace 3.8L engine are as follows.
Follow the details mentioned below.
Buick Lacrosse Engine
Removal & Installation

3.8L Engine
  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Disconnect the negative battery cable.
  3. Remove the hood.
  4. Relieve the fuel system pressure.
  5. Drain the coolant system and crankcase.
  6. Remove or disconnect the following:
    NOTE
    Always replace the accelerator control cable with a NEW cable whenever you remove the engine from the vehicle.



    Negative cable
    Fuel injector sight shield
    Vacuum brake booster hose from the vacuum connections
    Fuel feed and return lines from the fuel rail
    Evaporative emission canister purge valve
    Cruise control cable from the throttle body bracket and lever
    Electrical connector from the cruise control module
    Cruise control module from the mounting studs



    Accelerator control cable
    Accessory drive belt
    Bolt securing both the battery negative cable and the engine harness ground lead to the engine block
  7. Disconnect the wiring harness connectors from the following components:

    A/C compressor clutch
    A/C pressure sensor
    Knock Sensor (KS)
    Engine coolant block heater
    Oil level sensor
  8. Remove or disconnect the following:

    Wiring harness from the harness clip at the rear of the A/C compressor
    Torque converter cover
    Starter motor
    Bolts securing the flywheel to the torque converter
  9. Disconnect then secure the following wiring harness electrical connectors to the cowl panel:

    Knock Sensor (KS) number 2 which can be found behind the right exhaust manifold
    Oil pressure sensor
    Vehicle Speed Sensor (VSS)
  10. Remove or disconnect the following:

    Bolts securing the transaxle brace to the transaxle
    Nuts attaching the exhaust manifold pipe to the right exhaust manifold
    Exhaust manifold pipe from the right exhaust manifold studs, allowing it to rest on top of the power steering gear heat shield
    Exhaust manifold pipe gasket and discard the gasket
    Right wheelhouse extension
    Font A/C compressor mounting nuts
    Rear A/C compressor mounting bolt
    Compressor off of the mounting studs and rest on top of the engine frame
    Bolt securing the Powertrain Control Module (PCM) ground located at the left front cylinder head
  11. Disconnect the wiring harness electrical connectors from the following components on the left side of the engine:

    Fuel injectors
    Ignition harness
    Boost control solenoid (VIN I only)
    Engine Coolant Temperature (ECT) sensor
    Throttle Position (TP) sensor
    Idle Air Control (IAC) valve
    Mass Air Flow (MAF) sensor
  12. Disconnect the wiring harness connectors from the following components on the right side of the engine:

    Fuel injectors
    Exhaust Gas Recirculation (EGR) valve
    Manifold Absolute Pressure (MAP) sensor
    Heated Oxygen (O 2 S) sensor
    AIR solenoid, if equipped
    Alternator
  13. Remove or disconnect the following:

    Alternator
    Air cleaner intake duct
  14. Attach an engine support fixture.

    Front power steering pump mounting bolts
    Side power steering pump mounting bolt and piston the power steering pump against the cowl, allowing it to rest on top of the transaxle housing
    Right engine mount bracket
    Right lower engine to transaxle mounting bolt
    Coolant and heater hoses
  15. Use a block of wood between a floor jack and the transaxle, support the transaxle at the pan.
  16. Remove the engine support fixture.
  17. Attach an engine lift chain to the engine lift brackets and attach to an engine lift device.
  18. Remove all remaining engine to transaxle bolts
  19. Remove the engine from the vehicle.
To install:
  1. Installation is the reverse of removal, please note the following torques:

    5 upper engine to transaxle mounting bolts to 55 ft. lbs. (75 Nm)
    Right lower engine to transaxle mounting bolt to 55 ft. lbs. (75 Nm)
    Power steering pump bolts to 20 ft. lbs. (27 Nm)
    Bolt attaching the PCM ground to the left front cylinder head and tighten to 37 ft. lbs. (50 Nm)
    A/C compressor bolts 37 ft. lbs. (50 Nm)
    Transaxle brace bolts to 48 ft. lbs.(65 Nm)
    Flywheel to torque converter bolts to 46 ft. lbs. (63 Nm)
  2. Refill the crankcase.
  3. Refill and bleed the engine cooling system.
  4. Start the engine and check for leaks.
  5. Road test the vehicle and check operation.

These details will help.
Thanks.

FOR MORE HELP GO TO: ---

Car repair guide?

http://technoanswers.blogspot.in/2012/03/car-repair-guide.html

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