Page 184 of 1575
6.Check the mica depth (A). If the mica is too high (B), undercut the mica with a hacksaw blade to the proper depth.
Cut away all the mica (C) between the commutator segments. The undercut should not be too shallow, too narrow,
or v- shaped (D).
Commutator mica depth
Standard (New) : 0.5 mm (0.0197 in.)
Limit : 0.2mm (0.0079 in.)
7.Check for continuity between the segments of the commutator. If an open circuit exists between any segments,
replace the armature.
8.Check with an ohmmeter that no continuity exists between the commutator (A) and armature coil core (B), and
between the commutator and armature shaft (C). If continuity exists, replace the armature.
INSPECT STARTER BRUSH
Brushes that are worm out, or oil - soaked, should be replaced.
Page 195 of 1575
2007 > 2.7L V6 GASOLINE >
TROUBLESHOOTING
Symptom Suspect area Remedy
Engine will not start or hard to
start Vacuum hose disconnected or damaged
Repair or replace
Malfunction of the Purge Control Solenoid
Valve Repair or replace
Rough idle or engine stalls Vacuum hose disconnected or damaged
Repair or replace
Malfunction of the PCV valve Replace
Malfunction of the evaporative emission
canister purge system Check the system; if there is a
problem, check related
components parts
Excessive oil consumption Positive crankcase ventilation line clogged Check positive crankcase
ventilation system
Page 210 of 1575

2007 > 2.7L V6 GASOLINE >
INSPECTION
When disconnecting the vacuum hose, make an identification mark on it so that it can be reconnected to its
original position.
1. Disconnect the vacuum hose from the solenoid valve.
2. Detach the harness connector.
3. Connect a vacuum pump to the nipple which is connected to intake manifold.
4. Apply vacuum and check when voltage is applied to the PCSV and when the voltage is discontinued.
Battery voltage Normal condition
When applied Vacuum is released
When discontinued Vacuum is maintained
5. Measure the resistance between the terminals of the solenoid valve.
PCSV coil resistance(Ω) :
14.0 ~ 18.0Ω at 20°C (68°F)
INSPECTION
FUNCTION AND OPERATION PRICIPLE
Purge Control Solenoid Valve (PCSV) is installed on the surge tank and controls the passage between the canister
and the intake manifold. It is a solenoid valve and is open when the PCM grounds the valve control line. When the
passage is open (PCSV ON), fuel vapors stored in the canister is transferred to the intake manifold.
SPECIFICATION
Item Specification
Coil Resistance (Ω) 14.0 ~ 18.0Ω at 20°C (68°F)
CIRCUIT DIAGRAM
Page 328 of 1575

2007 > 2.7L V6 GASOLINE >
SPECIFICATION
Item F4A51
Torque converter type 3 - element, 1 - stage, 2 - phase type
Transaxle type 4 - speed forward, 1 - speed reverse
Engine displacement 2.7L GSL
Gear ratio 1st
2.842
2nd 1.495
3rd 1.000
4th 0.731
Reverse 2.720
Final gear ratio 4.520
Shift pattern Variable
Shift range 4range ( P- R- N- D) + Sports mode
Shift range valve PWM ; 5EA(Duty control) , VFS
Planetary gear 2EA(Output planetary/Overdrive planetary)
Clutch 3EA
Brake 2EA
OWC 1EA
TIGHTENING TORQUE ITEM Nmkgf·m lb- ft
Control cable nut 8 ~ 120.8 ~ 1.2 5.8 ~ 8.6
Input shaft speed sensor 10 ~ 121.0 ~1.2 7 ~ 8
Output shaft speed sensor 10 ~ 121.0 ~1.2 7 ~ 8
Manual control lever 18 ~ 251.8 ~ 2.5 13 ~ 18
Transaxle range switch 10 ~ 121.0 ~1.2 7 ~ 8
Valve body cover 10 ~ 121.0 ~1.2 7 ~ 8
Valve body mounting bolt 10 ~ 121.0 ~1.2 7 ~ 8
Oil temperature sensor 10 ~ 121.0 ~1.2 7 ~ 8
Oil filler plug 29 ~ 342.9 ~ 3.421.4 ~ 25.1
Oil drain plug 40 ~ 504.0 ~ 5.0 29 ~ 36
Solenoid valve support 5 ~ 70.5 ~ 0.7 4 ~ 5
Pressure check plug 8 ~ 100.8 ~ 1.0 6 ~ 7
Transaxle mounting sub bracket nut 60 ~ 806.0 ~ 8.0 43 ~ 58
Transaxle mounting bracket bolts 40 ~ 554.0 ~ 5.5 29 ~ 40
Transaxle mounting insulator bolt 90 ~ 1109.0 ~ 1165 ~ 80
Transaxle and engine mounting bolt 65 ~ 856.5 ~ 8.5 47 ~ 61.5
Drive plate bolt 46 ~ 534.6 ~ 5.333.3 ~ 38.3
Page 337 of 1575
2007 > 2.7L V6 GASOLINE >
Hydraulic Control System
DESCRIPTION
a.Better and smoother shift quality.
b. In order to prevent ATF leakage from the valve body or each elements, the exhaust ports have been grouped into
only one with an addition of a check ball.
c. If a failure occurs in its electric control, the switch valve and fail safe valve is able to move to enable 3rd speed
drive or reverse.
d. The hydraulic system consists of oil pump, regulator valve, solenoid valves, pressure control valve and valve body.
e. In order to control the optimal line pressure and inprove the efficiency of power transmission according to maximize
the efficiency of the oil pump, VFS(Variable Force Solenoid) valve has been added in the valve body hydralic
circuit.
Page 351 of 1575

Low&Reverse brakeLRHold LR annulus gear and OD carrier
Second brake 2NDHold reverse sun gear
One way clutch OWCRestrict the rotating direction of low & reverse annulus gear
Operating elements
UD/COD/CREV/C 2ND/B LR/BOWC
P ●
R ●●
N ●
D1 ● ●○
D2 ● ●
D3 ●●
D4 ●●
1) ○ : OWC is operated when shifts from 1st gear to 2nd gear.
2) L&R brake is released in 1st gear when the vehicle speed is more than 5KPH approximately.
Torque converter and shaft
The torque converter consists of an impeller(pump), turbine and stator assembly in a single unit. The pump is
connected to the engine crankshaft and turns as the engine turns. This drawing force is transmitted to the turbine
through the oil which is recycled by the stator.
The transmission has two parallel shafts ; the input shaft and the output shaft. Both shafts are in line with the engine
crankshaft. The input shaft includes the overdrive clutch, reverse clutch, underdrive clutch, one way clutch, 2ND brake,
low&reverse brake, overdrive planetary carrier, output planetary carrier and transfer drive gear. The output shaft
includes the transfer driven gear.
CLUTCHES
The gear changing mechanism utilizes three multi- disc clutches. The retainers of these clutches are fabricated from
high- precision sheet metal for lightness and ease of production. Also, more responsive gearshifts at high engine
speeds are achieved by a pressure- balanced piston mechanism that cancels out centrifugal hydraulic pressure. This
mechanism replaces the conventional ball check valve.
UNDERDRIVE CLUTCH
The underdrive clutch operates in 1st, 2nd, and 3rd gears and transmits driving force from the input shaft to the
underdrive sun gear(A).
The components comprising the under clutch are as illustrated below.
Page 366 of 1575

32ND SOLENOID(SCSV C)
Solenoid valve driver for 5sec.3. P range
4. Vehicle speed 0km/h
5. Engine stop
6. No failure
7. TPS < 1V
4
OD SOLENOID(SCSV D)
5 TORQUE CONVERTER SOLENOID VALVE
6 A/T CONTROL RELAY OFF for 3 sec. -
7 INTELLIGENT SHIFT PROHIBIT Prohibit until IG off -
8 CLEAR LEARNING VALUE --
ROAD TEST
No.Condition OperationJudgment value Check item
1 Ignition switch : OFF
Ignition switch
(1) ON Battery voltage (mV)
Control relay
2 a.
Ignition switch :
ON
b. Engine : Stopped
c. Selector lever
position : P Selector lever position
(1) P, (2) R, (3) N, (4) D
(1) P, (2) R, (3) N, (4)
DTransaxle range switch
Accelerator pedal
(1) Released
(2) Half depressed
(3) Depressed (1) 400~1,000 mV
(2)Gradually rises
from (1)
(3) 4,500~5,000 mVThrottle position sensor
Brake pedal
(1) Depressed
(2) Released (1) ON
(2) OFF
Brake switch
3 a.
Ignition switch : ST
b. Engine : Stopped Starting test with lever P or
N range
Starting should be
possibleStarting possible or
impossible
4 Warming up
Drive for 15 minutes or
more so that the automatic
fluid temperature becomes
70~90°C Gradually rises to
70~90°C
Oil temperature sensor
5 a.
Engine : Idling
b. Selector lever
position : N A/C switch
(1) ON
(2) OFF
(1) ON
(2) OFF
Triple pressure switch
Accelerator pedal
(1) Released
(2) Half depressed (1) ON
(2) OFF
Idle position switch
(1) 600~900 rpm
(2) Gradually rises
from (1)
(1) Data changes Communication with
engine - ECU
Selector lever position
(1) N→D
(2) N→R Should be no
abnormal shifting
shocks
Time lag should be
within 2 secondsMalfunction when starting
Selector lever position
: N (Carry out on a
flat and straight road) Selector lever position and
vehicle speed
a. Idling in 1st gear
(Vehicle stopped)
b. Driving at constant
speed of 20 km/h in 1st
gear (2) 1st, (4) 3rd, (3)
2nd, (5) 4th
Shift condition
(2) 0%, (4) 100%, (3)
100%, (5) 100% Low and reverse solenoid
valve
(2) 0%, (4) 0%, (3)
0% Underdrive solenoid valve
Page 367 of 1575

6c.
Driving at constant
speed of 30 km/h in 2nd
gear
d. Driving at 50 km/h in 3rd
gear with accelerator
fully closed
e. Driving at constant
speed of 50 km/h in 4th
gear (1) 100%, (2) 0%, (3)
100%
Second solenoid valve
(2) 100%, (3) 100%,
(4) 0% Overdrive solenoid valve
(1) 0km/h
(4) 50km/h Vehicle speed sensor
(4) 1,800 ~ 2,100rpm Input shaft speed sensor
(4) 1,800 ~ 2,100rpm Output shaft speed sensor
7 Selector lever position
: D (Carry out on a
flat and straight road)
a.
Accelerate to 4th gear at
a throttle position sensor
output of 1.5V
(accelerator opening
angle of 30 %).
b. Gently decelerate to a
standstill.
c. Accelerate to 4th gear at
a throttle position sensor
output of 2.5 V
(accelerator opening
angle of 50%).
d. While driving at 60 km/h
in 4th gear, shift down
to 3rd gear.
e. While driving at 40 km/h
in 3rd gear, shift down
to 2nd gear.
f. While driving at 20 km/h
in 2nd gear, shift down
to 1st gear. For (1), (2) and (3),
the reading should be
the same as the
specified output shaft
torque, and no
abnormal shocks
should occur.
For (4), (5) and (6),
downshifting should
occur immediately
after the shifting
operation is made.
Malfunction when shifting
Displaced shift points
Does not shift
Does not shift from 1 to 2 or
2 to 1
Does not shift from 2 to 3 or
3 to 2
Does not shift from 3 to 4 or
4 to 3
8 Selector lever position
: N (Carry out on a
flat and straight road)
Move selector lever to R
range drive at constant
speed of 10km/h The ratio between
input and output shaft
speed sensor data
should be the same
as the gear ratio
when reversing.Does not shift
TORQUE CONVERTER STALL TEST
This test measures the maximum engine speed when the selector lever is in the D or R position. The torque converter
stalls to test the operation of the torque converter, starter motor, one- way clutch operation, the holding performance of
the clutches, and brakes in the transaxle.
Do not let anybody stand in front of or behind the vehicle while this test is being carried out
1. Check the automatic transmission fluid level and temperature, and the engine coolant temperature.
a. Fluid level : At the HOT mark on the oil level gauge
b. Fluid temperature : 80~100°C (176~212°F)
c. Engine coolant temperature : 80~100°C(176~212°F)
2. Prevent all the wheels from moving during the test.
3. Pull the parking brake lever up, with the brake pedal fully depressed.
4. Start the engine.