Mitsubishi Eclipse. Manual - part 755
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-29
STANDARD HYDRAULIC PRESSURE TEST
NOTE: If the torque converter pressure is measured, the engine speed should be 1,500 r/min or less.
HYDRAULIC PRESSURE TEST DIAGNOSIS TABLE
MEASUREMENT CONDITION
STANDARD HYDRAULIC PRESSURE MPa (psi)
SELECTOR LEVER
POSITION
SHIFT
POSITION
ENGINE
SPEED
(r/min)
UNDERDRIVE
CLUTCH
PRESSURE
[UD]
REVERSE
CLUTCH
PRESSURE
[RV]
OVERDRIVE
CLUTCH
PRESSURE
[OD]
LOW-
REVERSE
BRAKE
PRESSURE
[LR]
SECOND
BRAKE
PRESSURE
[2ND]
TORQUE
CONVERTER
PRESSURE
[DR]
P
−
2,500
−
−
−
0.31
− 0.39
(45
− 57)
−
0.25
− 0.39
(37
− 57)
R
Reverse 2,500
−
1.27
− 1.77
(185
− 256)
−
1.27
− 1.77
(185
− 256)
−
0.50
− 0.70
(73
− 101)
N
−
2,500
−
−
−
0.31
− 0.39
(45
− 57)
−
0.25
− 0.39
(37
− 57)
L <Vehicles
without sport
mode> or Sport
mode <Vehicles
with sport mode>
1st gear 2,500
1.01
− 1.05
(147
− 152)
−
−
1.01
− 1.05
(147
− 152)
−
0.50
− 0.70
(73
− 101)
2 <Vehicles
without sport
mode> or Sport
mode <Vehicles
with sport mode>
2nd gear 2,500
1.01
− 1.05
(147
− 152)
−
−
−
1.01
− 1.05
(147
− 152)
0.50
− 0.70
(73
− 101)
3 <Vehicles
without sport
mode> or Sport
mode <Vehicles
with sport mode>
3rd gear 2,500
0.59
− 0.69
(86
− 100)
−
0.59
− 0.69
(86
− 100)
−
−
−
D <Vehicles
without sport
mode> or Sport
mode <Vehicles
with sport mode>
4th gear 2,500
−
−
0.59
− 0.69
(86
− 100)
−
0.59
− 0.69
(86
− 100)
−
SYMPTOMS
PROBABLE CAUSE
All hydraulic pressures are high. Malfunction of the regulator valve
All hydraulic pressures are low.
Malfunction of the oil pump
Clogged internal oil filter
Clogged oil cooler
Malfunction of the regulator valve
Malfunction of the relief valve
Incorrect valve body installation
Improperly installed solenoid valves
Damaged solenoid valve O-rings
Hydraulic pressure is abnormal
in reverse gear only.
Malfunction of the regulator valve
Clogged orifice
Incorrect valve body installation