Unstable RPM While Driving

Unstable rpm while driving

Intermediate housing assembly worn or damaged

Pulley pressure feed pipe damaged or out of round

Forward clutch assembly defective

Reverse brake defective

Reverse brake piston stuck, worn or damaged

Start clutch assembly defective

Start clutch end-plate clearance incorrect

Start clutch feed pipe damaged or out of round

CVTF pump worn, binding, or foreign material in CVTF pump

Low CVTF level

CVTF strainer or CVTF filter clogged

CVTF deteriorated

Valve body assembly defective

CVT driven pulley pressure control solenoid valve defective

CVT drive pulley pressure control solenoid valve defective

CVT clutch pressure control solenoid valve defective

Manual valve body assembly defective

Manual valve lines worn or damaged

Solenoid valves defective

Solenoid wire harness worn or damaged

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

Vehicle speed sensor defective

PCM defective

Start clutch control system not calibrated in PCM

Engine output low

IMA motor defective

Notes

Check the drive and driven pulley pressure, and lubrication pressure. If the pressure is low or there is no pressure, check the CVTF pump, the CVTF pump chain, and the CVTF pump sprocket.

Notes

Check the forward clutch pressure.

Notes

Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage. If the discs and plates are worn or damaged, replace them as a set. If they are OK, adjust the clearance with the clutch end-plate.

Notes

Check for a stored DTC, and check for a loose solenoid wire harness connector.

Notes

Check the reverse brake pressure.

Notes

Inspect the reverse brake piston and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the reverse brake end-plate and the top disc. If the clearance is out of tolerance, inspect the reverse brake discs and plates for wear and damage. If the discs and plates are worn or damaged, replace them as a set. If they are OK, adjust the clearance with the reverse brake end-plate.

Notes

Check the CVTF level, and check the CVTF cooler lines for leakage and loose connections. If necessary, clean the CVTF cooler lines.

Notes

Calibrate the start clutch control system.

Notes

Check the EGR valve.