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Home >> Chevrolet >> 2002 >> Astro Van Passenger, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 829 (Engine Mechanical - 4.3L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Drive Belt Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Route the belt over all the pulleys except the tensioner arm.
  2. Observe drive belt routing for vehicles without air conditioning.
    Fig 1: Identifying Drive Belt Routing For Vehicles Without Air Conditioning
    G01643596Courtesy of GENERAL MOTORS CORP.
  3. Observe drive belt routing for vehicles with air conditioning.
    Fig 2: Identifying Drive Belt Routing For Vehicles With Air Conditioning
    G01643597Courtesy of GENERAL MOTORS CORP.
  4. Install a 3/8 inch drive wrench on the drive belt tensioner arm and rotate the arm counterclockwise.
    Fig 3: Rotating Tensioner Arm Counterclockwise
    G01643598Courtesy of GENERAL MOTORS CORP.
  5. Install the drive belt over the drive belt tensioner pulley.
  6. Slowly release the tension on the tensioner arm.
  7. Inspect for the drive belt being properly installed on the pulleys.
    Fig 4: Inspecting Drive Belt For Proper Installation
    G01643599Courtesy of GENERAL MOTORS CORP.
  8. Avoid mis-positioning the drive belt by one or more grooves.
    Fig 5: Identifying Correct Positioning Of Drive Belt
    G01643600Courtesy of GENERAL MOTORS CORP.
  9. 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.
    Fig 6: Locating Fix Pointer And Index Marks On Drive Belt Tensioner
    G01643601Courtesy of GENERAL MOTORS CORP.
  10. With a used drive belt installed, the fix pointer should not align past the index mark.
  11. Install the air cleaner outlet duct. Refer to ENGINE CONTROLS - REMOVAL & INSTALLATION in Engine Performance
  12. Install the air cleaner assembly. Refer to ENGINE CONTROLS - REMOVAL & INSTALLATION in Engine Performance
    Fig 7: Identifying Correct Positioning Of Fix Pointer While Installing Drive Belt
    G01643602Courtesy of GENERAL MOTORS CORP.
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