Operation CHARM: Car repair manuals for everyone.

Time Lag Test

If the selector lever is shifted while the engine is idling, there will be a certain time lapse, or time lag, before shock is felt. This step measures the time lag to check the condition of the N-D, 1-2, and N-R accumulators, forward and one-way clutches, 2-4 brake band, and low and reverse brake.

Preparation
Follow the preparation procedure outlined in STALL TEST.
Stall Test

Procedure:




Procedure
1. Start the engine.
2. Check the idle speed in P range.

Idle speed: 700 - 800 rpm (with parking brake applied)

3. Shift from N range to D range.
4. Use a stopwatch to measure the time it takes from shifting until shock is felt.

CAUTION: Idling for at least one (1) minute cools the ATF and prevents its deterioration.

5. Shift the selector to N range and run the engine at idle speed for at least one (1) minute.

NOTE: Make three measurements for each test and take the average value.

6. Perform the test for the following shifts in the same manner.
1. N->D range
2. N->D range (Hold mode)
3. N->R range

Time lag: N->D range 0.5 - 0.6 second
N->R range 0.6 - 0.7 second

Evaluation Of Time Lag Test

Evaluation Of Time Lag Test: