Page 10 of 1575

noise,regardless of
engine speed.Loose or damaged drive plate.
Repair or replace the drive plate.
Damaged oil pan, contacting the oil pump
screen. a.
Inspect the oil pan.
b. Inspect the oil pump screen.
c. Repair or replace as required.
Oil pump screen loose, damaged or
restricted. a.
Inspect the oil pump screen.
b. Repair or replace as required.
Excessive piston- to- cylinder bore clearance. a.Inspect the piston, piston pin and cylinder
bore.
b. Repair as required.
Excessive piston pin- to- piston clearance. a.Inspect the piston, piston pin and the
connecting rod.
b. Repair or replace as required.
Excessive connecting rod bearing clearance Inspect the following components and repair
as required.
a. The connecting rod bearings.
b. The connecting rods.
c. The crankshaft pin journals.
Excessive crankshaft bearing clearance. Inspect the following components, and repair
as required.
a. The crankshaft bearings.
b. The crankshaft main journals.
c. The cylinder block.
Incorrect piston, piston pin and connecting rod
installation a.
Verify the piston pins and connecting rods
are installed correctly.
b. Repair as required.
Engine noise under
load. Low oil pressure
Repair or replace as required.
Excessive connecting rod bearing clearance . Inspect the following components and repair
as required :
a. The connecting rod bearings.
b. The connecting rods.
c. The crankshaft.
Excessive crankshaft bearing clearance. Inspect the following components, and repair
as required.
a. The crankshaft bearings.
b. The crankshaft main journals.
c. The cylinder block.
Engine will not crank-
crankshaft will not
rotate. Hydraulically locked cylinder.
a. Coolant/antifreeze in cylinder.
b. Oil in cylinder.
c. Fuel in cylinder. a.
Remove spark plugs and check for fluid.
b. Inspect for broken head gasket.
c. Inspect for cracked engine block or
cylinder head.
d. Inspect for a sticking fuel injector and/or
leaking fuel regulator.
Broken timing chain and/or timing chain
and/or timing chain gears. a.
Inspect timing chain and gears.
b. Repair as required.
Material in cylinder. a. Broken valve
b. Piston material
c. Foreign material a.
Inspect cylinder for damaged components
and/or foreign materials.
b. Repair or replace as required.
Page 71 of 1575
INSTALLATION
Installation is in the reverse order of removal.
Perform the following :a. Adjust the shift cable.
b. Refill the engine with engine oil.
c. Refill the transaxle with fluid.
d. Refill the radiator with engine coolant.
e. Bleed air from the cooling system with the heater valve open.
f. Clean the battery posts and cable terminals with sandpaper assemble them, then apply grease to prevent
corrosion.
g. Inspect for fuel leakage.
After assembling the fuel line, turn on the ignition switch (do not operate the starter) so that the fuel pump runs for
approximately two seconds and fuel line pressurizes.
Repeat this operation two or three times, then check for fuel leakage at any point in the fuel line.
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a.[U2.7]
L nleaded : ILFR5B11
Leaded : LFR5A
ON-VEHICLE INSPECTION
SPARK TEST
1. Remove the ignition coil connector(A).
Disconnect the iguition coil connector while pulling up tre connector lock.
2. Remove the ignition coil.
3. Using a spark plug socket, remove the spark plug.
4. Install the spark plug to the ignition coil.
5. Ground the spark plug to the engine.
6.Check is spark occurs while engine is being cranked.
To prevent fuel being injected from injectors while the engine is being cranked, remove the fuel pump(A) relay
from the fuse box.
Crank the engine for no more than 5 ~ 10 seconds.
7. Inspect all the spark plugs.
8. Using a spark plug socket, install the spark plug.
9. Install the ignition coil.
10. Reconnect the ignition coil connector.
Page 176 of 1575

2007 > 2.7L V6 GASOLINE >
STARTER CIRCUIT TROUBLESHOOTING
The battery must be in good condition and fully charged.
1. Remove the fuel pump relay(A) from the fuse box.
2. With the shift lever in N or P (A/T) or clutch pedal pressed (M/T), turn the ignition switch to "START"
If the starter normally cranks the engine, starting system is OK. If the starter will not crank the engine at all, go to
next step.
If it won't disengage from the ring gear when you release key, check for the following until you find the cause.
a. Solenoid plunger and switch malfunction.
b. Dirty pinion gear or damaged overrunning clutch.
3. Check the battery condition. Check electrical connections at the battery, battery negative cable connected to the
body, engine ground cables, and the starter for looseness and corrosion. Then try starting the engine again.
If the starter cranks normally the engine, repairing the loose connection repaired the problem. The starting system
is now OK.
If the starter still does not crank the engine, go to next step.
4. Disconnect the connector from the S- terminal of solenoid. Connect a jumper wire from the B- terminal of solenoid to
the S- terminal of solenoid.
If the starter cranks the engine, go to next step.
If the starter still does not crank the engine, remove the starter, and repair or replace as necessary.
5. Check the following items in the order listed until you find the open circuit.
a. Check the wire and connectors between the driver's under - dash fuse/relay box and the ignition switch, and
between the driver's under - dash fuse/relay box and the starter.
b. Check the ignition switch (Refer to BE group - ignition system)
c. Check the transaxle range switch connector or ignition lock switch connector.
d. Inspect the starter relay.
STATER SOLENOID TEST
1.Disconnect the field coil wire from the M- terminal of solenoid switch.
2. Connect the battery as shown. If the starter pinion pops out, it is working properly. To avoid damaging the starter,
do not leave the battery connected for more than 10 seconds.
3.Disconnect the battery from the M terminal.
If the pinion does not retract, the hold- in coil is working properly. To avoid damaging the starter, do not leave the
battery connected for more than 10 seconds.
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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
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2007 > 2.7L V6 GASOLINE >
DESCRIPTION
The CVVT (Continuously Variable Valve Timing) which is installed on the exhaust camshaft controls intake valve open
and close timing in order to improve engine performance.
The intake valve timing is optimized by CVVT system depending on engine rpm.
This CVVT system improves fuel efficiency and reduces NOx emissions at all levels of engine speed, vehicle speed,
and engine load by EGR effect because of valve over - lap optimization.
The CVVT changes the phase of the intake camshaft via oil pressure.
It changes the intake valve timing continuously.
OPERATION
The CVVT system makes continuous intake valve timing changes based on operating conditions.
Intake valve timing is optimized to allow the engine to produce maximum power.
Cam angle is advanced to obtain the EGR effect and reduce pumping loss. The intake valve is closed quickly to
reduce the entry of the air/fuel mixture into the intake port and improve the changing effect.
Reduces the cam advance at idle, stabilizes combustion, and reduces engine speed.
If a malfunction occurs, the CVVT system control is disabled and the valve timing is fixed at the fully retarded position.
Page 232 of 1575
2007 > 2.7L V6 GASOLINE >
SPECIFICATIONS
FUEL DELIVERY SYSTEM
Items Specification
Fuel Tank Capacity80 lit. (21.1 U.S.gal., 17.6 Imp.gal.)
Fuel Filter (built in Fuel Pump
assembly) Type
High pressure type
Fuel Pressure Regulator (built in
Fuel Pump assembly) Regulated Fuel
Pressure 375 ~ 385 kPa(3.82 ~ 3.92 kgf/cm², 54.3 ~ 55.8 psi)
Fuel Pump Type
Electrical, in - tank type
Driven by Electric motor
SENSORS
MASS AIR FLOW SENSOR (MAFS)
J Type: Hot - film type
J Specification
Air Flow (kg/h) Frequency (Hz)
12.6 kg/h 2,617Hz
18.0 kg/h 2,958Hz
23.4 kg/h 3,241Hz
32.4 kg/h 3,653Hz
43.2 kg/h 4,024Hz
57.6 kg/h 4,399Hz
72.0 kg/h 4,704Hz
108.0 kg/h 5,329Hz
144.0 kg/h 5,897Hz
198.0 kg/h 6,553Hz
270.0 kg/h 7,240Hz
360.0 kg/h 7,957Hz
486.0 kg/h 8,738Hz
666.0 kg/h 9,644Hz
900.0 kg/h 10,590Hz
INTAKE AIR TEMPERATURE SENSOR (IATS)
J Type: Thermistor type
J Specification Temperature Resistance (kΩ)
°C °F
- 40 - 40100.87
- 20 -428.58
0 329.40
10 505.66
Page 237 of 1575
Heated oxygen sensor (Bank 2 / Sensor 2) installation3.5 ~ 4.534.3 ~ 44.1 25.3 ~ 32.6
Ignition coil installation bolt 1.0 ~ 1.29.8 ~ 11.8 7.2 ~ 8.7
Knock sensor [Bank 1] installation 1.9 ~ 2.418.6 ~ 23.5 13.7 ~ 17.4
Knock sensor [Bank 2] installation 1.9 ~ 2.418.6 ~ 23.5 13.7 ~ 17.4
Manifold absolute pressure sensor installation bolt 0.8 ~ 1.27.8 ~ 11.8 5.8 ~ 8.7
FUEL DELIVERY SYSTEM Item kgf·mN·mIbf·ft
Fuel tank band mounting nuts 4.0 ~ 5.539.2 ~ 53.9 28.9 ~ 39.8
Fuel pump assembly mounting bolts 0.2 ~ 0.32.0 ~ 2.91.4 ~ 2.2
Delivery pipe installation bolts 0.9 ~ 1.48.8 ~ 13.7 6.5 ~ 10.1
Accelerator pedal module installation bolts 1.3 ~ 1.612.8 ~ 15.7 9.4 ~ 11.6