- Set the parking brake and block the front wheels.
- Connect a tachometer to the engine and start the engine.
- Make sure the A/C switch is OFF.
- After the engine has warmed up to normal operating temperature (the radiator fan comes on), shift to position.
- Fully press the brake pedal and accelerator for 6 to 8 seconds and note engine speed. Do not move the shift lever while raising engine speed.
- Allow 2 minutes for cooling, then repeat the test in , and positions.
NOTE:
- Do not test stall speed for more than 10 seconds at a time.
- Stall speed tests should be used for diagnostic purposes only.
- Stall speed should be the same in , , and positions.
- Do not test stall speed with the A/T pressure gauges installed.
Stall Speed rpm:
D14Z6 engine:
Specification: 2,550 rpm (min-1)
Service Limit: 2,400 - 2,700 rpm (min-1)
D16V1 and D16V3 engines:
Specification: 2,800 rpm (min-1)
Service Limit: 2,650 - 2,950 rpm (min-1)
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- If the measurements are out of the service limit, problems and probable causes are listed in the table below:
Problem |
Probable cause |
Stall speed rpm high in , , and positions |
- Low fluid level or ATF pump output low
- Clogged ATF strainer
- Pressure regulator valve stuck closed
- Slipping clutch
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Stall speed rpm high in position |
Slippage of 1st clutch |
Stall speed rpm high in position |
Slippage of 2nd clutch |
Stall speed rpm high in position |
Slippage of 4th clutch |
Stall speed rpm low in , , and positions |
- Engine output low
- Torque converter one-way clutch slipping
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