CVT Stall Speed Test

1.	Set the parking brake, and block the front wheels.

2.	Connect a tachometer to the engine, and start the engine.

3.	Make sure the A/C switch is OFF.

4.	After the engine has warmed up to normal operating temperature (the radiator fan comes on), shift to [D] position.

5.	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.

6.

Allow 2 minutes for cooling, then repeat the test in [S], [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 should be the same in [D], [S], [L], and [R] positions. Do not test stall speed with the A/T pressure gauges installed. Stall Speed rpm in [D], [S], [L], and [R] positions:  Specification:  2,500 rpm (min-1)  Service Limit:  2,350-2,650 rpm (min-1)

7.

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 [D], [S], [L], and [R] positions  Low fluid level or ATF pump output low Clogged ATF strainer PH regulator valve stuck closed Slipping forward clutch Faulty start clutch   Stall speed rpm high in [R] position  Slippage of reverse clutch Faulty start clutch   Stall speed rpm low in [D], [S], [L], and [R] positions  Engine output low Faulty start clutch Stuck pulley control valve