Operation CHARM: Car repair manuals for everyone.

Judder When Starting Off




Judder when starting off

Diagnostic Procedure:

1. Start clutch defective

2. CVTF deteriorated or worn out

3. Valve body assembly defective

4. CVT start clutch pressure control valve defective

5. CVT input shaft (drive pulley) and output shaft (driven pulley) speed sensors defective

6. CVT speed sensor and CVT speed sensor (secondary) defective ('06 model)

7. CVT speed sensor defective ('07-09 models)

8. PCM defective

Also check for:

- Check for a stored DTC, and check for a loose solenoid harness connector.
- Check the CVTF level, and check the ATF cooler lines for leakage and loose connections. Clean the ATF cooler lines, and replace the CVTF.
- Check the start clutch with the HDS.