Content .. 157 158 159 160 ..

Mitsubishi Outlander XL. Manual - part 159

｠

Transmission: P range

NOTE:

On vehicles for Canada, the headlight, taillight,

etc. remain lit even when the lighting switch is in "OFF"
position but this is no problem for checks.

ZK600760AA00

DATA LINK

CONNECTOR

MB991824

MB991827

MB991910

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.

Connect scan tool MB991958 to the data link connector.

Check that the basic ignition timing is within the standard
value.

Standard value: 5° BTDC ± 3°

Start the engine and increase the engine speed to 2,500 r/min
for 2 minutes.

Set the CO, HC tester.

Check the CO contents and the HC contents at idle.

Standard value:

CO contents: 0.5% or less
HC contents: 100 ppm or less

If the CO and HC contents do not remain inside the standard
value, check the following items:

NOTE:

Replace the catalytic converter when the CO and HC

contents do not remain inside the standard value, even
though the result of the inspection is normal for all
items.

｠

Diagnostic output

｠

Closed-loop control (When the closed-loop control is carried
out normally, the output signal of the heated oxygen sensor
changes between 0 - 400 mV and 600 - 1,000 mV at idle.)

｠

Fuel pressures

｠

Injector

｠

Ignition coil, spark plug

｠

EGR system and EGR valve leak

｠

Evaporative emission system

｠

Compression pressure

COMPRESSION PRESSURE CHECK

M11102000903USA0000010000

Required Special Tool:

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

｠

MB991824: V.C.I.

｠

MB991827: M.U.T.-III USB Cable

｠

MB991910: M.U.T.-III Main Harness A

Before inspection, check that the engine oil, starter and battery
are normal. Also, set the vehicle in the following condition:

｠

Engine coolant temperature: 80 - 95°C (176 - 203°F)

｠

Lights and all accessories: OFF

ENGINE MECHANICAL

11A-17

ON-VEHICLE SERVICE

｠

Transmission: P range

NOTE:

On vehicles for Canada, the headlight, taillight,

etc. remain lit even when the lighting switch is in "OFF"
position but this is no problem for checks.

Remove all of the ignition coils and spark plugs.

ZK600330

Camshaft position
sensor connector

AA00

Disconnect the crankshaft position sensor connector.

NOTE:

Doing this will prevent the engine control module

from carrying out ignition and fuel injection.

Keep your distance from the spark plug hole when
cranking. Oil, fuel, etc., may spray out from the spark plug
hole and may cause serious injury.

Cover the spark plug hole with a shop towel etc., during
cranking. After the engine has been cranked, check for foreign
material adhering to the shop towel.

ZK600331

Compression
gauge

AA00

Set compression gauge to one of the spark plug holes.

Crank the engine and measure the compression pressure.

Standard value (at engine speed of 200 r/min): 1,460
kPa (212 psi)
Minimum limit (at engine speed of 200 r/min): 1,050
kPa (153 psi)

Measure the compression pressure for all the cylinders, and
check that the pressure differences of the cylinders are below
the limit.

Limit: 98 kPa (14 psi)

If  there  is  a  cylinder  with  compression  or  a  compression
difference  that  is  outside  the  limit,  pour  a  small  amount  of
engine  oil  through  the  spark  plug  hole,  and  repeat  the
operations in steps 6 to 8.

(1)

If the compression increases after oil is added, the cause
of the malfunction is a worn or damaged piston ring and/or
cylinder inner surface.

(2)

If the compression does not rise after oil is added, the
cause is a burnt or defective valve seat, or pressure is
leaking from the gasket.

Connect the crankshaft position sensor connector.

10.

Install the spark plugs and ignition coils.

11A-18

ENGINE MECHANICAL

ON-VEHICLE SERVICE

ZK600760AA00

DATA LINK

CONNECTOR

MB991824

MB991827

MB991910

11.

Use the scan tool MB991958 to erase the diagnostic trouble
codes.

NOTE:

This will erase the diagnostic trouble code

resulting from the crankshaft position sensor connector
being disconnected.

MANIFOLD VACUUM CHECK

M11102000904USA0000010000

Start the engine and allow it to warm up until the temperature
of the engine coolant reaches 80 - 95°C (176 - 203°F).

Connect an engine tachometer.

ZK600332

Ventilation hose

Plug

Positive crankcase
ventilation valve

AA00

Vacuum gauge

Disconnect the ventilation hose from the positive crankcase
ventilation (PCV) valve, and connect a vacuum gauge to the
ventilation hose.

Plug the PCV valve.

Start the engine and check that idle speed is within
specification. Then check the vacuum gauge reading.

Idle speed: 600 ± 100 r/min
Minimum limit: 60 kPa (18 in Hg)

LASH ADJUSTER CHECK

M11102000914USA0000010000

If an abnormal noise (chattering noise) suspected to be caused
by malfunction of the lash adjuster is produced immediately after
starting the engine and does not disappear, perform the
following check.

NOTE:

The lash adjuster is installed in exhaust side only.

NOTE:

Parking the vehicle on a grade for a long time may

decrease oil in the lash adjuster, causing air to enter the
high pressure chamber when starting the engine.

NOTE:

After parking for many hours, oil may run out from

the oil passage and take time before oil is supplied to the

ENGINE MECHANICAL

11A-19

ON-VEHICLE SERVICE

lash adjuster, causing air to enter the high pressure
chamber.

NOTE:

In the above cases, abnormal noise can be eliminated

by bleeding the lash adjuster system.

NOTE:

An abnormal noise due to malfunction of the lash

adjuster is produced immediately after starting the engine
and changes with the engine speed, irrespective of the
engine load.If, the abnormal noise is not produced
immediately after starting the engine or does not change
with the engine speed, or it changes with the engine load,
the lash adjuster is not the cause for the abnormal noise.

NOTE:

When the lash adjuster is malfunctioning, the

abnormal noise is rarely eliminated by continuing the
warming-up of the engine at idle speed.However, the
abnormal noise may disappear only when seizure is caused by
oil sludge in the engine whose oil is not maintained
properly.

Start the engine.

Check  if  the  abnormal  noise  produced  immediately  after
starting  the  engine,  changes  with  the  change  in  the  engine
speed.
If  the  abnormal  noise  is  not  produced  immediately  after
starting  the  engine  or  it  does  not  change  with  the  engine
speed,  the  lash  adjuster  is  not  the  cause  for  the  noise.
Therefore,  investigate  other  causes.  The  abnormal  noise  is
probably caused by some other parts than the engine proper
if it does not change with the engine speed. (In this case, the
lash adjuster is in good condition.)

With the engine idling, change the engine load (shift from N to
D range, for example) to make sure that there is no change in
the level of abnormal noise.
If there is a change in the level of abnormal noise, suspect a
tapping noise due to worn crankshaft bearing or connecting
rod bearing (In this case, the lash adjuster is in good
condition.).

After completion of warm-up, run the engine at idle to check
for abnormal noise.
If the noise is reduced or disappears, clean the lash adjuster
(Refer to GROUP 11B, Engine Overhaul - Rocker Arms and
Camshaft - Lash Adjuster Inspection P.11B-43). As it is
suspected that the noise is due to seizure of the lash adjuster.
If there is no change in the level of the abnormal noise,
proceed to step 5.

Run the engine to bleed the lash adjuster system (Refer to.).

If the abnormal noise does not disappear after air bleeding
operation, clean the lash adjuster (Refer to GROUP 11B,
Engine Overhaul - Rocker Arms and Camshaft - Lash Adjuster
Inspection P.11B-43).

11A-20

ENGINE MECHANICAL

ON-VEHICLE SERVICE

Content .. 157 158 159 160 ..