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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 208 (Automatic Transmission - ALLISON - Diagnosis) >> Diagnostic Tests >> DTC P0736: Incorrect Reverse Ratio >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The numbers listed below refer to step numbers in the diagnostic procedure:

  1. 3  - This step tests ignition voltage.
  2. 4  - This step tests for current Reverse gear ratio.
  3. 5  - This step tests for noise induced from the engine speed sensor.
  4. 6  - This step tests for turbine speed not remaining at zero in Reverse.
  5. 7  - This step checks for evidence of clutch failure.

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