Unstable engine speed (CVT)

Probable cause(s)

• TCM defective
• Low transmission fluid (HCF-2) level
• Transmission fluid (HCF-2) deteriorated
• Transmission fluid strainer or CVTF warmer strainer clogged
• Drive pulley, driven pulley, pulley shaft, steel belt, and pulley related parts worn or damaged
• Pulley pressure feed pipe defective
• Forward clutch defective
• Reverse brake defective
• CVT drive pulley pressure control solenoid valve defective
• CVT driven pulley pressure control solenoid valve defective
• CVT clutch pressure control solenoid valve defective
• CVT lock-up clutch control solenoid valve defective
• Shift solenoid valve B defective
• Shift solenoid valve O/P defective
• Transmission fluid pump worn, binding, or foreign material in transmission fluid pump
• Valve body assembly defective
• Joint pipes defective
• Torque converter assembly defective
• Torque converter ring gear worn or damaged
• Transmission assembly and drive plate installation defective

Notes

• Check the transmission fluid (HCF-2) level .
• Inspect the clearance between the forward clutch end-plate and the top disc .
• Inspect the clearance between the reverse brake end-plate and the top disc .
• Inspect the CVT solenoid valve .