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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29522
Experience:  GM Grand Master Technician 2007. 14 years experience.
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how do I remove/reinstall alternator on 2002 chevy blazer

Resolved Question:

how do I remove/reinstall alternator on 2002 chevy blazer?
Submitted: 7 years ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 7 years ago.

Welcome. The alternator is not hard to change at all. Below are instructions.

  • Remove the drive belt.
    Object Number: 395682  Size: SH
  • Remove the heater hose brace bolt from the generator.

  • Object Number: 332407  Size: SH

  • Remove the generator mounting bolts.
  • Remove the generator from the mounting bracket.

  • Object Number: 395687  Size: SH

  • Disconnect the generator electrical connector.

  • Object Number: 43019  Size: SH

  • Remove the generator output (BAT) terminal retaining nut from the generator.
  • Installation


      Object Number: 43019  Size: SH

      Notice: 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.

    1. Connect the generator output (BAT) terminal wire.
    2. Ensure the insulating boot is covering the terminal nut.

      Tighten
      Tighten the generator output (BAT) terminal nut to 17 N·m (12 lb ft).


      Object Number: 395687  Size: SH

    3. Connect the generator electrical connector.

    4. Object Number: 332407  Size: SH

    5. Install the generator to the generator mounting bracket.
    6. Install the generator mounting bolts.
    7. Tighten
      Tighten the generator mounting bolts to 50 N·m (37 lb ft).


      Object Number: 395682  Size: SH

    8. Install the heater hose bracket bolt to the generator.
    9. Tighten
      Tighten the heater hose bracket to the generator bolt to 25 N·m (18 lb ft).

    GM Tech (Cam) and 7 other Chevy Specialists are ready to help you
    Customer: replied 7 years ago.
    how do I remove/reinstall drive belt?
    Expert:  GM Tech (Cam) replied 7 years ago.

    Removal Procedure


      Object Number: 374176  Size: SH

    1. Install a 3/8 inch drive wrench on the drive belt tensioner arm and rotate the arm counterclockwise.
    2. Remove the drive belt.
    3. Slowly release the tension on the drive belt tensioner arm.

    Installation Procedure

    1. Route the drive belt over all the pulleys except the drive belt tensioner pulley.

    2. Object Number: 43858  Size: SH

    3. Observe the drive belt routing for the vehicles without air conditioning.

    4. Object Number: 43859  Size: SH

    5. Observe the drive belt routing for the vehicles with air conditioning.

    6. Object Number: 374176  Size: SH

    7. Install a 3/8 inch drive wrench on the drive belt tensioner arm and rotate the arm counterclockwise.
    8. Install the drive belt over the drive belt tensioner pulley.
    9. Slowly release the tension on the drive belt tensioner arm.

    10. Object Number: 172992  Size: SH

    11. Inspect for the drive belt being properly installed on the pulleys.

    12. Object Number: 172993  Size: SH

    13. Avoid mis-positioning the drive belt by one or more grooves.

    14. Object Number: 331327  Size: SH

    15. Confirm for the proper drive belt size and the correct drive belt routing by observing the location of the fix pointer and the index marks on the drive belt tensioner. With a new drive belt installed the fix pointer should align within the indentation on the drive belt tensioner.

    16. Object Number: 369211  Size: SH

    17. With a used drive belt installed the fix pointer should not align past the index mark.