2009 SUBARU TRIBECA Harness

LU(H6DO)-17
General Diagnostics Table
LUBRICATION
10.General Diagnostics Table
A: INSPECTION
Before performing diagnostics, make sure that the engine oil level is correct and no oil leakage exists.
Symptom Possible cause Corrective action
1. Warning light remains
on.
1) Oil pressure switch
failure
Cracked diaphragm or oil leakage within switch Replace.
Broken spring or seized contacts Replace.
2) Low oil pressure
Clogging of oil filter Replace.
Malfunction of oil by-pass valve in oil filter Clean or replace.
Malfunction of oil relief valve in oil pump Clean or replace.
Clogged oil passage Clean.
Excessive tip clearance and side clearance of oil
pump rotor and gearReplace.
Clogged oil strainer or broken pipe Clean or replace.
3) No oil pressure
Insufficient engine oil Replenish.
Broken pipe of oil strainer Replace.
Stuck oil pump rotor Replace.
2. Warning light does
not turn on.
1) Malfunction of combination meter Replace.
2) Poor contact of switch contact points Replace.
3) Disconnection of wiring Repair.
3. Warning light flickers
momentarily.
1) Poor contact of terminals Repair.
2) Defective wiring harness Repair.
3) Low oil pressure
Check for the same
possible causes as
listed 1) — 2).

ME(H6DO)-32
Engine Assembly
MECHANICAL
10.Engine Assembly
A: REMOVAL
1) Set the vehicle on a lift.
2) Change the bolt mounting position from (A) to
(B), then completely open the front hood.
3) Remove the collector cover.
4) Collect the refrigerant from A/C system. AC-20, PROCEDURE, Refrigerant Recovery Pro-
cedure.>
5) Release the fuel pressure.
PRESSURE, PROCEDURE, Fuel.>
6) Remove the battery from vehicle. SC(H6DO)-25, REMOVAL, Battery.>
7) Remove the air intake duct, air cleaner case and
air intake chamber.

Case.> take Chamber.>
8) Remove the engine front cover.
9) Remove the radiator from the vehicle. CO(H6DO)-15, REMOVAL, Radiator.>
NOTE:
Protect the condenser so that it will not be dam-
aged.
10) Remove the fuel hose bracket.
11) Remove the V-belts. REMOVAL, V-belt.>
12) Disconnect the A/C pressure hoses from A/C
compressor. Tube.>
13) Remove the engine ground terminal.
14) Disconnect the following connector.
(1) Engine harness connectors
(2) Generator connector, terminal and A/C
compressor connector
(3) Power steering switch connector
ME-02652
(A)
(B)
CO-02176
ME-02653
ME-00476
ME-02654

ME(H6DO)-38
Engine Assembly
MECHANICAL
20) Install the reservoir tank.
Tightening torque:
33 N·m (3.4 kgf-m, 24.3 ft-lb)
21) Connect the following hoses.
(1) Fuel delivery hose and evaporation hose
(2) Heater inlet and outlet hoses
(3) Brake booster vacuum hose
22) Connect the following connectors.
(1) Engine harness connectors
(2) Generator connector and terminal
(3) A/C compressor connector
(4) Power steering switch connector
23) Connect the engine ground terminal.
Tightening torque:
14 N·m (1.4 kgf-m, 10.1 ft-lb)
24) Install the A/C pressure hoses.

25) Install the V-belts. STALLATION, V-belt.>
26) Install the radiator to vehicle. CO(H6DO)-17, INSTALLATION, Radiator.>
27) Install the battery to vehicle. SC(H6DO)-25, REMOVAL, Battery.>
28) Fill engine coolant.
COOLANT, REPLACEMENT, Engine Coolant.>
29) Check the ATF level and replenish it if neces-
sary.
mission Fluid.>
30) Charge the A/C system with refrigerant. to AC-21, PROCEDURE, Refrigerant Charging
Procedure.>
31) Install the engine front cover.
32) Install the air intake duct, air cleaner case and
air intake chamber. LATION, Air Intake Duct.> INSTALLATION, Air Cleaner Case.> IN(H6DO)-6, INSTALLATION, Air Intake Cham-
ber.>
33) Install the collector cover.
34) Change the bolt mounting position from (B) to
(A), then close the front hood.
35) Lower the vehicle from the lift.
C: INSPECTION
1) Check the pipes and hoses are installed firmly.
2) Check the engine coolant and ATF are at speci-
fied levels.
3) Start the engine and check for leaks of fuel, ex-
haust gas, engine coolant, etc. Also check for noise
and vibrations.
ME-02657
ME-02654
ME-00476
ME-02663
(A)
(B)

ME(H6DO)-40
Preparation for Overhaul
MECHANICAL
12.Preparation for Overhaul
A: REMOVAL
1) Remove the engine assembly from the body.
sembly.>
2) Set the engine on ST.
ST 18232AA000 ENGINE STAND
3) Before servicing overhaul, remove the sensor,
pipe and hose that installed to engine.
(1) Remove the intake manifold. FU(H6DO)-12, REMOVAL, Intake Manifold.>
(2) Remove the generator. 19, REMOVAL, Generator.>
(3) Remove the A/C compressor. 33, REMOVAL, Compressor.>
(4) Disconnect the water pipe and hose.
(5) Disconnect the engine harness.
(6) Remove the spark plug. 4, REMOVAL, Spark Plug.>
(7) Remove the camshaft position sensor.
Position Sensor.>
(8) Remove the crankshaft position sensor.
Position Sensor.>
(9) Remove the knock sensor. FU(H6DO)-20, REMOVAL, Knock Sensor.>
(10) Remove the engine coolant temperature
sensor. gine Coolant Temperature Sensor.>
(11) Remove the oil pressure switch. LU(H6DO)-13, REMOVAL, Oil Pressure
Switch.>
(12) Remove the oil filter. 14, REMOVAL, Engine Oil Filter.>
(13) Remove the oil cooler. 15, REMOVAL, Oil Cooler.>
STME-02448

ME(H6DO)-83
Engine Trouble in General
MECHANICAL
28.Engine Trouble in General
A: INSPECTION
NOTE:
The “RANK” shown in the chart shows the possibilities of the cause of trouble in order from “most likely” to
“rarely”.
A — Most likely
B — Sometimes
C — Rarely
Symptom Problem parts etc. Possible cause RANK
1. Engine does not start.
1) Starter does not turn. Starter Defective battery-to-starter harness B
Defective starter switch C
Defective inhibitor switch or neutral switch C
Defective starter B
Battery Improper connection of terminal A
Run-down battery A
Defective charging system B
Fr iction Seizure of crankshaft and connecting rod bear ing C
Seized camshaft C
Seized or stuck piston and cylinder C
2) Initial combustion does
not occur.
Starter Defective starter C
Engine control system A
Fuel line Defective fuel pump and relay A
Lack of or insufficient fuel B
Chain Trouble B
Defective timing B
Compression Incorrect valve clearance C
Loosened spark plug or defective gasket C
Loosened cylinder head bolt or defective gasket C
Improper valve sealing C
Defective valve stem C
Wor n or broken valve spr ing B
Wor n or stuck piston r ings, cylinder and piston C
Incorrect valve timing B
Improper engine oil (low viscosity) B
Tr o u b l e o f t a p p e t C
Tr o u b l e o f t a p p e t . I n c a s e n o i s e o c c u r s w i t h v a l v e m o v -
ing. Or the harness involved to oil switching solenoid
valve, variable valve lift diagnosis oil pressure switch
and variable valve lift has trouble in a past.
B

ME(H6DO)-84
Engine Trouble in General
MECHANICAL
3) Initial combustion occurs. Engine control system A
Intake system Defective intake manifold gasket B
Defective throttle body gasket B
Fuel line Defective fuel pump and relay C
Clogged fuel line C
Lack of or insufficient fuel B
Chain Trouble B
Defective timing B
Compression Incorrect valve clearance C
Loosened spark plug or defective gasket C
Loosened cylinder head bolt or defective gasket C
Improper valve sealing C
Defective valve stem C
Wor n or broken valve spr ing B
Wor n or stuck piston r ings, cylinder and piston C
Incorrect valve timing B
Improper engine oil (low viscosity) B
Tr o u b l e o f t a p p e t C
Tr o u b l e o f t a p p e t . I n c a s e n o i s e o c c u r s w i t h v a l v e m o v -
ing. Or the harness involved to oil switching solenoid
valve, variable valve lift diagnosis oil pressure switch
and variable valve lift has trouble in a past.
B
4) Engine stalls after initial
combustion.
Engine control system A
Intake system Loosened or cracked intake duct B
Loosened or cracked PCV hose C
Loosened or cracked vacuum hose C
Defective intake manifold gasket B
Defective throttle body gasket B
Dirty air cleaner element C
Fuel line Clogged fuel line C
Lack of or insufficient fuel B
Chain Trouble B
Defective timing B
Compression Incorrect valve clearance C
Loosened spark plug or defective gasket C
Loosened cylinder head bolt or defective gasket C
Improper valve sealing C
Defective valve stem C
Wor n or broken valve spr ing B
Wor n or stuck piston r ings, cylinder and piston C
Incorrect valve timing B
Improper engine oil (low viscosity) B
Tr o u b l e o f t a p p e t C
Tr o u b l e o f t a p p e t . I n c a s e n o i s e o c c u r s w i t h v a l v e m o v -
ing. Or the harness involved to oil switching solenoid
valve, variable valve lift diagnosis oil pressure switch
and variable valve lift has trouble in a past.
B
Symptom Problem parts etc. Possible cause RANK

ME(H6DO)-85
Engine Trouble in General
MECHANICAL
2. Rough idle and engine
stall
Engine control system A
Intake system Loosened or cracked intake duct A
Loosened or cracked PCV hose A
Loosened or cracked vacuum hose A
Defective intake manifold gasket B
Defective throttle body gasket B
Defective PCV valve C
Loosened oil filler cap B
Dirty air cleaner element C
Fuel line Defective fuel pump and relay C
Clogged fuel line C
Lack of or insufficient fuel B
Chain Defective timing C
Compression Incorrect valve clearance B
Loosened spark plug or defective gasket B
Loosened cylinder head bolt or defective gasket B
Improper valve sealing B
Defective valve stem C
Wor n or broken valve spr ing B
Wor n or stuck piston r ings, cylinder and piston B
Incorrect valve timing A
Improper engine oil (low viscosity) B
Tr o u b l e o f t a p p e t C
Tr o u b l e o f t a p p e t . I n c a s e n o i s e o c c u r s w i t h v a l v e m o v -
ing. Or the harness involved to oil switching solenoid
valve, variable valve lift diagnosis oil pressure switch
and variable valve lift has trouble in a past.
B
Lubrication system Incorrect oil pressure B
Defective rocker cover gasket C
Cooling system Over-heating C
Others Evaporative emission control system malfunction A
Stuck or damaged throttle valve B
Symptom Problem parts etc. Possible cause RANK

ME(H6DO)-86
Engine Trouble in General
MECHANICAL
3. Low output, hesitation and
poor acceleration
Engine control system A
Intake system Loosened or cracked intake duct A
Loosened or cracked PCV hose A
Loosened or cracked vacuum hose B
Defective intake manifold gasket B
Defective throttle body gasket B
Defective PCV valve B
Loosened oil filler cap B
Dirty air cleaner element A
Fuel line Defective fuel pump and relay B
Clogged fuel line B
Lack of or insufficient fuel C
Chain Defective timing B
Compression Incorrect valve clearance B
Loosened spark plug or defective gasket B
Loosened cylinder head bolt or defective gasket B
Improper valve sealing B
Defective valve stem C
Wor n or broken valve spr ing B
Wor n or stuck piston r ings, cylinder and piston C
Incorrect valve timing A
Improper engine oil (low viscosity) B
Tr o u b l e o f t a p p e t C
Tr o u b l e o f t a p p e t . I n c a s e n o i s e o c c u r s w i t h v a l v e m o v -
ing. Or the harness involved to oil switching solenoid
valve, variable valve lift diagnosis oil pressure switch
and variable valve lift has trouble in a past.
B
Lubrication system Incorrect oil pressure B
Cooling system Over-heating C
Over-cooling C
Others Evaporative emission control system malfunction A
Symptom Problem parts etc. Possible cause RANK