Diamante V6-2972cc 3.0L SOHC (1992)
Torque Converter Clutch: Testing and Inspection
CONVERTER STALL TEST
Stall test consist of determining maximum engine speed obtained at full throttle in "D" and "A" positions. This test checks torque converter stator
overrunning clutch operation, and holding ability of transaxle clutches and low-reverse brake.
Caution: During this test, make sure that no one stand in front of or behind vehicle.
1. Check transmission fluid level. Fluid should be at normal operating temperature [7O-8O°C (158-176°F). Engine coolant should also be at normal
operating temperature [8O-9O°C (176-1 94°F).
2. Apply chocks to both rear wheels.
3. Attach engine tachometer.
4. Apply parking and service brakes fully.
5. Start engine.
6. With selector lever in "D" position, depress accelerator pedal fully to read engine maximum rpm. Do not hold throttle wide open any longer than
is necessary to obtain maximum engine rpm reading, and never longer than 5 seconds at a time. If more than one stall test is required, operate
engine at approximately 1,000 rpm in neutral for 2 minutes to cool transmission fluid between tests.
Stall speed: 1,800-2,800 rpm <SOHC>
2,200-3,200 rpm <DOHC>
Stall Speed Above Specification in "R"
If stall speed is higher than specification, front clutch of transaxle or low-reverse brake is slipping. In this case, perform hydraulic test to locate cause
of slippage.
Stall Speed Below Specification in "D" and "R"
If stall speed is lower than specification, insufficient engine output or faulty torque converter is suspected. Check for engine misfiring. ignition timing,
valve clearance, etc. If these are good, torque converter is faulty.
