Test procedure with vehicle stationary
1. Check the engine oil level. Top up if necessary.
2. Drive the car for about 10 minutes and warm up the CVT fluid to 50-80°C.
Check the CVT fluid level. Top up if necessary.
3. Apply the parking brake securely so that the wheels do not spin.
4. Connect the tachometer and install it so that it is visible to the driver during the test.
- It is advisable to mark the specified engine speed range on the scale.
5. Start the engine, press the brake pedal and move the selector lever to the «D».
6. While keeping the brake pedal depressed, gradually press the accelerator pedal.
7. Quickly record the engine speed reading with the vehicle stationary and immediately remove your foot from the accelerator pedal.
During the test, do not hold the accelerator pedal down for more than 5 seconds.
Engine speed when the vehicle is stationary: See paragraph below. «Technical data and specifications».
8. Move the selector lever to position «N».
9. Cool the CVT fluid.
- Let the engine run at idle speed. for at least 1 minute.
10 Repeat paragraphs. 6 9, placing the selector lever in position «R».
Evaluation of test results with a stationary vehicle
Selector lever position | Suspected location of the fault | ||
«D» | «R» | ||
Stationary vehicle speed | Higher | Norm | • Forward clutch |
Norm | Higher | • Reverse brake | |
Below | Below | • Overrunning clutch of engine and torque converter | |
Higher | Higher | • Low pressure in the main line; | |
• Drive pulley; | |||
• Driven pulley; | |||
• Steel belt. |