Stall Speed Test

WARNING: Apply the parking brake firmly while carrying out each Stall Speed Test.

CAUTION: Perform Line Pressure Test prior to carrying out Stall Speed Test. If the line pressure is low at stall, do not conduct the Stall Speed Test or further transaxle damage will occur.

The Stall Speed Test checks:

torque converter clutch operation and installation.
holding ability of the forward clutch.
reverse clutch.
low/reverse one-way clutch.
engine performance.

Conduct this test with the engine coolant and transmission fluid at proper levels and at normal operating temperature.

Apply the parking brake firmly for each stall speed test.

Find the specified stall RPM for the vehicle. Refer to the STALL SPEED CHART . Use a grease pencil to mark the RPM on the dial of a tachometer.

STALL SPEED CHART

Engine	Stall Speed
3.3L	1800-2100 RPM

Connect a tachometer to the engine.

NOTE: If the RPM recorded by the tachometer exceeds the maximum limits, release the accelerator pedal immediately because clutch or band slippage is indicated.

In each of the following ranges D, 2, 1, R, press the accelerator pedal to the floor and hold it just long enough to get the engine get to wide open throttle (WOT). While carrying out this test, do not hold the throttle open for more than 5 seconds at a time.
Note the results in each range.
After each range, move the selector lever to NEUTRAL and run the engine at 1000 RPM for about 15 seconds to cool the torque converter before carrying out the next test.
Refer to the following chart for corrective actions.

NOTE: The stall speed in REVERSE will be lower.

If stall speeds are too high, refer to the following chart. If stall speeds are too low, check engine idle speed and tuneup. Then carry out the Stall Speed Test again. If engine is OK and stall speeds are still low, remove torque converter and check torque converter clutch for slippage.