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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1219 (Engine Mechanical - 4.2L 6-Cylinder (Unit Repair)) >> Repair Instructions >> Engine Block Plug Installation

Engine Block Plug Installation

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Add sealer GM P/N United States 12346004, GM P/N Canada 10953480 to the plug threads.
  2. Install the engine block oil gallery plug to rear of block.
    NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Tighten 

    Tighten the engine block oil gallery plug to 80 N.m (40 lb ft).

    3. Fig 1: Installing Engine Block Oil Gallery Plug To Rear Of Block
    G01706663Courtesy of GENERAL MOTORS CORP.
  3. Add sealer GM P/N United States 12346004, GM P/N Canada 10953480 to the plug threads.
  4. Install the engine block oil gallery plugs to front and left of block.

    Tighten 

    • Tighten the side engine block oil gallery plugs to 35 N.m (26 lb ft).
    • Tighten the front (1) engine block oil gallery plug to 80 N.m (40 lb ft).
      • Fig 2: Tightening Front Engine Block Oil Gallery Plug
      G01706664Courtesy of GENERAL MOTORS CORP.
  5. Add sealer GM P/N United States 12346004, GM P/N Canada 10953480 to the coolant temperature sensor threads.
  6. Install the coolant temperature sensor.

    Tighten 

    Tighten the coolant temperature sensor to 20 N.m (15 lb ft).

    7. Fig 3: Installing Coolant Temperature Sensor
    G01706665Courtesy of GENERAL MOTORS CORP.
  7. Add sealer GM P/N United States 12346004, GM P/N Canada 10953480 to the EVAP solenoid bolt threads.

    Tighten 

    Tighten the EVAP solenoid bolt to 10 N.m (89 lb in).

    8. Fig 4: Tightening EVAP Solenoid Bolt
    G01706666Courtesy of GENERAL MOTORS CORP.
  8. Install the knock sensors.

    Tighten 

    Tighten the knock sensors to 25 N.m (18 lb ft).

    9. Fig 5: Installing Knock Sensors
    G01706667Courtesy of GENERAL MOTORS CORP.
  9. Add sealer GM P/N United States 12346004, GM P/N Canada 10953480 to the crankshaft position sensor bolt.
  10. Install the crankshaft position sensor and bolt.

    Tighten 

    Tighten the crankshaft position sensor bolt to 10 N.m (89 lb in).

    11. Fig 6: Installing Crankshaft Position Sensor And Bolt
    G01706668Courtesy of GENERAL MOTORS CORP.
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