Stall Test

NOTE: The stall test checks converter one-way clutch operation and installation, the holding ability of the forward clutch, the reverse clutch, the low and reverse bands, the planetary one-way clutch and engine performance.

PREPARATION
1. Perform the following checks, as indicated in the chart:
2. Check and correct as necessary, the engine coolant, engine oil, and ATF levels before testing.
3. Warm the engine to raise the ATF and engine coolant to operating temperature
4. Engage the parking brake and use wheel chocks at the front and rear of the wheels
5. Connect a tachometer to the engine

PROCEDURE
1. Start the engine
2. Shift the selector lever to R range

CAUTION:
^ Holding at stall speed for longer than 5 seconds could result in damage to internal transmission components.

^ If the engine speed recorded by the tachometer exceeds the maximum stall speed limit, release the accelerator pedal immediately because clutch or band slippage is indicated.

^ Always perform the Line Pressure Test before performing the Stall Test. If line pressure is LOW at stall, DO NOT perform the Stall Test.

NOTE: Prolonged use of this test procedure may set DTCs P0712and P1783. After performing the stall test, perform the Quick Test and clear diagnostic codes.

3. Firmly depress the brake pedal with the left foot, and gently depress the accelerator pedal with the right foot.

CAUTION: If the engine rpm exceeds the maximum rpm specified, RELEASE the accelerator pedal IMMEDIATELY.

4. When the engine speed no longer increases, quickly read the engine speed on the tachometer and release the accelerator pedal.
5. Move the selector lever to the N range and run the engine at 1000 rpm for 15 seconds.

CAUTION: Be sure to run the engine at 1000 rpm for 15 seconds between each stall test.





6. Perform stall tests for the ranges below in the same manner.
a. (D) range
b. 2 range
c. 1 range

CAUTION: If the engine rpm exceeds 2,405 - 2,800 rpm, RELEASE the accelerator pedal IMMEDIATELY. Clutch or band slippage is indicated.