Check the transmission fluid pressure is performed in order to determine the condition of hydraulic components and whether there are leaks.
Symptom | possible cause |
All hydraulic high pressure | Incorrectly adjusted control cable transmission |
Pressure control valve defective |
All hydraulic pressure low | Incorrectly adjusted control cable transmission |
Faulty oil pump |
Dirty oil filter internal |
Blocked oil cooler |
Pressure control valve defective |
Faulty relief valve |
Improperly installed valve body |
Hydraulic pressure is abnormally only at position selector ?�R?� | Pressure control valve defective |
Opening is blocked |
Improperly installed valve body |
Hydraulic pressure is abnormally only at position selector "3" or "4" | Pressure control valve defective |
Opening is blocked |
Improperly installed valve body |
Defective solenoid valve overdrive |
Faulty pressure control valve overdrive |
Faulty valve switch |
Hydraulic pressure is abnormally only downshift | Damaged oil seal K |
Damaged oil seal L |
Damaged oil seal M |
possible cause |
Defective solenoid valve downshift |
Faulty pressure control valve downshift |
Damaged ball control |
Opening is blocked |
Improperly installed valve body |
Hydraulic pressure is abnormally only in reverse gear clutch | A damaged oil seal |
Damaged oil seal B |
Damaged oil seal C |
Opening is blocked |
Improperly installed valve body |
Hydraulic pressure is abnormally only in overdrive | Damaged oil seal D |
Damaged oil seal E |
Damaged oil seal F |
Defective solenoid valve overdrive |
Faulty pressure control valve overdrive |
Damaged ball control |
Opening is blocked |
Improperly installed valve body |
Hydraulic pressure is abnormally only in low gears and reverse gear
| Damaged oil seal I |
Damaged oil seal J |
Defective solenoid valve low gears and reverse gear |
Faulty low pressure regulating valve gear and reverse gear |
Faulty valve switch |
Faulty relief valve A |
Damaged ball control |
Opening is blocked |
Improperly installed valve body |
Abnormally only secondary hydraulic pressure
| Damaged oil seal G |
Damaged oil seal H |
Damaged oil seal O |
Defective solenoid valve secondary |
Faulty secondary pressure control valve |
Faulty safety valve |
Opening is blocked |
Improperly installed valve body |
Abnormally only the hydraulic pressure clutch reverse gear
| Damaged oil cooler |
Damaged oil seal N |
Faulty solenoid clutch control damper |
Faulty damper clutch control valve |
Faulty pressure control valve torque converter |
Opening is blocked |
Pressure is applied not to a functioning element | Improperly installed valve body |
Incorrectly adjusted control cable transmission |
Damaged valve |
Damaged ball control |