Stall Speed Test
- Make sure the transmission fluid is filled to the proper level (see CVT FLUID LEVEL CHECK ).
- Apply 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 the D position.
- Fully press the brake pedal and accelerator pedal for 6 to 8 seconds, and note the engine speed. Do not move the shift lever while raising the engine speed.
- Allow 2 minutes for cooling, then repeat the test in the L and R 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 tests should be the same in the D, L, and R positions.
- Do not test stall speed with the A/T pressure gauges installed.
Stall Speed RPM
Specification: 2,500 RPM
Service Limit: 2,350-2,650 RPM
- If the measurements are out of the service limit, problems and probable causes are listed in the table:PROBLEMS AND PROBABLE CAUSES
Problem Probable cause Stall speed RPM high in the D, L, and R positions - ATF pump output low
- ATF pump defective
- Clogged ATF strainer
- Pressure high (PH) regulator valve stuck closed
- Slippage of forward clutch
- Start clutch defective
Stall speed high in the R position - Slippage of reverse brake
- Start clutch defective
Stall speed low in the D, L, and R positions - Engine output low
- Start clutch defective
- Pulley control valves A and B stuck