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Home >> Subaru >> 2021 >> Forester Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> CVT Transaxle System >> Symptoms And Causes >> Inspection
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Symptoms And Causes: Inspection

Symptoms Problem parts etc.
Stall speed is low after warming-up, with select lever in "D range" or "R range". Engine control system
Engine speed rises up and the vehicle does not start, with select lever in "D range" or "R range".
  • Engine control system
  • Select cable
  • CVTF
  • Secondary pressure circuit
  • Primary pulley and secondary pulley, variator chain and reduction drive gear
  • Forward/reverse changeover section
  • TCM
  • Control valve body
  • Inhibitor switch
Vehicle does not move by engine stall, with select lever in "D range" or "R range".
  • Parking mechanism
  • Select cable
  • Torque converter
  • Forward/reverse changeover section
Excessive shock occurs at starting, with select lever in "D range" or "R range".
  • Secondary pressure circuit
  • Primary pulley and secondary pulley, variator chain
Acceleration speed from standstill is insufficient, with select lever in "D range" or "R range".
  • Control valve body
  • Forward/reverse changeover section
Engine speed suddenly rises up during driving, with select lever in "D range" or "R range".
  • Control valve body
  • Secondary pressure circuit
  • Primary pressure circuit
Vibration occurs during driving, with select lever in "D range" or "R range".
  • Secondary pressure circuit
  • Primary pressure circuit
  • Forward/reverse changeover section
  • Primary pulley and secondary pulley, variator chain
  • Torque converter
  • Hydraulic pressure circuit to torque converter
  • Control valve body
Sudden braking occurs during driving, with select lever in "D range" or "R range".
  • Secondary pressure circuit
  • Primary pressure circuit
  • Control valve body
During deceleration, lockup clutch does not disengage until just before halting, with select lever in "D range" or "R range".
  • Control valve body
  • Torque converter
Engine stalls with vehicle at a standstill, with select lever in "D range" or "R range".
  • Engine control system
  • Control valve body
Excessive lockup shock occurs during driving, with select lever in "D range". Control valve body
Slipping occurs at lockup, or lockup does not occur during driving, with select lever in "D range".
  • Control valve body
  • Lockup hydraulic circuit
  • Torque converter
Excessive shift shock occurs when shifting the select lever from "N range" to "D range", or from "N range" to "R range".
  • Inhibitor switch
  • Control valve body
  • Forward/reverse changeover section
Vehicle does not keep at standstill with select lever in "P range", or parking cannot be released when shifting from "P range" to another range.
  • Select cable
  • Parking mechanism
Select lever does not shift smoothly.
  • Select cable
  • Inhibitor switch
  • Detent spring
  • Manual plate