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Home >> Cadillac >> 2004 >> CTS Base, 3.6 7 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Manual Transmission - M35) >> Diagnostic Information and Procedures >> Transmission Locked in One Gear >> Test Description

Test Description

WARNING: This page is about a different variant/trim than selected.

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

  1. 2:  This step is to ensure the use of the proper transmission fluid. A special fluid is used to ensure proper synchronizer operation, and for sufficient lubrication. Improper fluid may cause the synchronizers to stick or the transmission components to overheat.
  2. 4:  A static shift test is performed by shifting into all gears with the engine not operating. By confirming that the transmission can be shifted into all positions, ensures that the shift lever is not excessively worn or damaged.
  3. 6:  A dynamic shift test is performed by shifting into all of the gear positions with the engine operating. Test to ensure that the internal shift components are functioning properly.
Transmission Locked in One Gear

Step Action Yes No
DEFINITION: The transmission cannot be shifted out of a gear, or the vehicle will not move because the transmission is locked.
1 Did you review the Symptoms - Manual Transmission, and perform the necessary inspections? Go to Step 2  Go to Symptoms - Manual Transmission 
2  Inspect for the correct type of transmission fluid.
Is the correct type transmission fluid being used?		 Go to Step 4  Go to Step 3 
3 Drain the transmission, and refill with the correct type of fluid. Refer to Transmission Fluid Replacement .
Did you find and repair the condition?		 Go to Step 9  Go to Step 4 
4 
  1. Perform a static shift test on the transmission.
  2. Test for the shift lever moving to all positions.
Were you able to shift into all positions?		 Go to Step 6  Go to Step 5 
5
  1. Remove the shift lever.
  2. Inspect for worn or faulty components. Refer to Shift Control Assembly Replacement .
Did you find and repair the conditions?		 Go to Step 9  Go to Step 6 
6 
  1. Perform a dynamic shift test on the transmission.
  2. Test for being able to shift in and out of the gear with the concern.
Were you able to shift the transmission correctly?		 Go to Step 7  Go to Step 8 
7
  1. Remove the transmission. Refer to Transmission Replacement .
  2. Inspect the clutch system for the clutch not releasing properly. Refer to Clutch System Description and Operation in Clutch.
Did you find and repair the condition?		 Go to Step 9  Go to Step 8 
8 Replace the transmission. Refer to Transmission Replacement .
Is the replacement complete?		 Go to Step 9  -
9 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 1 
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