Stall Speed Test: Test

NOTICE:

Do not test stall speed for more than 10 seconds at a time.
Stall speed tests should be used for diagnostic purposes only.
When working with a vehicle equipped with the electronic air suspension, be sure to set it to the leveling off mode to prevent unexpected operation. Refer to the Electronic Air Suspension System Service Precautions - Refer to: Electronic Air Suspension System Connector Fitting Precautions or Electronic Air Suspension System Service Precautions for the procedure.

NOTE:

The stall speed should be the same in all positions/modes.

Stall Speed - Test

Preconditions

Engine Warmed Up
NOTE:
Warm up the engine by raising the engine speed around 3, 000 RPM until the cooling fan(s) comes on.
Parking Brake Applied
All Four Wheels Blocked
A/C Switch OFF
ATF Level Normal Condition
HDS Connected

Procedure/Specifications

1. Select the following menu buttons on the HDS screen in sequence.

2. Start the engine.

3. Shift the transmission to D position/mode while pressing the brake pedal firmly, then press the accelerator pedal, and note the engine speed.

NOTICE: Do not change the shift position/mode or remove your foot off the brake pedal, while raising the engine speed.

4. Allow 2 minutes for cooling, then repeat the test in R position/mode.

Specifications

HDS Item	Application	Position/Mode	Standard Value
Engine Speed	Without AWD	D	1, 400-1, 800 RPM
	Without AWD	R	1, 600-2, 000 RPM
	3.0 L Engine (With AWD)	D	2, 000-2, 300 RPM
	3.0 L Engine (With AWD)	R	2, 100-2, 400 RPM
	3.5 L Engine (With AWD)	D	1, 600-2, 000 RPM
	3.5 L Engine (With AWD)	R	1, 900-2, 300 RPM

Result

If the measurement is not within specifications, refer to the problem and primary probable cause listed in the table.

Abnormal Details

Problem	Primary Probable Cause
Stall speed RPM high in D position/mode	Clutch pressure control solenoid valve G defective B1 cut valve defective B1 brake defective
Stall speed RPM high in R position/mode	Clutch pressure control solenoid valve B defective Clutch pressure control solenoid valve F defective C3 clutch defective B2 brake defective
Stall speed RPM low in D and R positions/modes	Torque converter lock-up clutch piston defective