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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 877 (Vibration Symptoms Diagnosis And Correction) >> Diagnostic Information and Procedures >> Vibration Analysis - Engine >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 2. If powertrain related DTCs are present, there may be a powertrain performance condition present which could be a contributing cause to the customer's concern
  2. 3. This step is designed to identify engine speed related disturbances that are NOT torque or load sensitive
  3. 4. This step is designed to identify engine-speed related disturbances that ARE torque or load sensitive
  4. 6. Making comparisons of the customer's vehicle with an equally equipped, same model year and type, KNOWN GOOD vehicle will help determine if certain disturbances may be characteristic of a vehicle design
    Fig 1: Engine Vibration - Diagnostic Table (1 Of 2)
    G02580460Courtesy of GENERAL MOTORS CORP.
    Fig 2: Engine Vibration - Diagnostic Table (2 Of 2)
    G02580461Courtesy of GENERAL MOTORS CORP.
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