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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1229 (Manual Transmission - NV 1500) >> Diagnostic Information & Procedures >> Transmission Does Not Shift Into One Gear >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 GMC Sonoma and 2002 Chevrolet S10 Pickup. 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. See Fig 1 and Fig 2 .

  1. 2

    This step is to confirm that the clutch is not slipping. During certain conditions, the clutch may slip, and feel as though the transmission is not in gear.
  2. 3

    A static shift test is performed by shifting into all gears with the engine not operating. While performing the test, you should note how the shift lever movement feels. Also, feel for the shift rails moving freely, the detent plungers operating when coming out of a gear and going in the next gear, and the synchronizer sleeve movement.
  3. 5

    A dynamic shift test is performed by shifting into all gears with the engine operating. Test for the correct mesh of the synchronizers sleeve and the speed gear selector teeth. Move the shift lever and feel for the synchronizer sleeve to just release from the gear, then let up on the clutch pedal. Depress the clutch pedal and move the shift lever to engage that gear again, to ensure full travel of the shift components.
  4. Fig 1: Transmission Does Not Shift Into One Gear (Steps 1-5)
    G01840411Courtesy of GENERAL MOTORS CORP.
    Fig 2: Transmission Does Not Shift Into One Gear (Steps 6-8)
    G01840412Courtesy of GENERAL MOTORS CORP.