Testing for proper gear shifting

1. The driver and passengers should wear seat belts.

2. Depress the service brake pedal.

3. Start the engine and move the vehicle gear selector to Drive.

4. Rotate the gear selector knob on the ECT Analyzer to the "1-2" position. The transmission will shift to second gear.

5. Press and hold the first gear button. The transmission will shift to first gear.

6. Release the parking brake.

7. Accelerate to 10 mph.

8. Release the first gear button. The transmission should shift to second gear.

9. Accelerate to 20 mph.

10. Rotate the selector knob to the number "T' position. The transmission should shift into third gear.

11. Accelerate to 25 mph.

12. Rotate the selector knob to the number "4" position. The transmission should shift to fourth gear.

13. Release the accelerator and coast.

14. Rotate the selector knob to the number "T' position. The transmission should downshift into third gear.

15. Apply the brakes, and stop the vehicle. Testing is complete.

Testing for lockup operation:

1. Operate the vehicle and ECT Analyzer up to fourth gear.

2. Accelerate to 40 mph.

3. Press and hold the "Lockup" button to engage the lockup clutch. Observe the tachometer and note a slight reduction in the engine rpm. (Is more noticeable when the vehicle is going up a slight hill due to converter slippage.)

4. Release the "Lockup" button to disengage the lockup clutch.

5. Apply vehicle brakes, and bring the vehicle to a halt. Test is complete.

Note: Testing for lockup can also be performed with the vehicle stopped, but with the engine running, With the gear shift selector in "D," press the "Lockup" button to engage the lockup clutch. With the converter in lockup, the engine idle rpm will drop significantly or stall. If there is no change 'in the engine idle rpm, the lockup function is not operational.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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