COOLING(H4DO) > Engine Cooling System Trouble in General
INSPECTION
Trouble | Possible cause | Corrective action |
Over-heating | a. Insufficient engine coolant | Replenish engine coolant, inspect for leakage, and repair it if necessary. |
b. Defective thermostat | Replace. | |
c. Malfunction of water pump | Replace. | |
d. Clogged engine coolant passage | Clean. | |
e. Improper ignition timing | Inspect and repair ignition control system. Basic Diagnostic Procedure"> | |
f. Clogged or leaking radiator | Clean, repair or replace. | |
g. Defective radiator cap | Replace. | |
h. Improper engine oil in engine coolant | Replace the engine coolant. If ineffective, check, repair or replace engine components. | |
i. Air/fuel mixture ratio too lean | Inspect and repair the fuel injection system. Basic Diagnostic Procedure"> | |
j. Excessive back pressure in exhaust system | Clean or replace. | |
k. Insufficient clearance between piston and cylinder | Adjust or replace. | |
l. Slipping clutch | Repair or replace. | |
m. Dragging brake | Adjust. | |
n. Malfunction of radiator fan | Inspect the radiator fan relay, engine coolant temperature sensor or fan motor and replace them. | |
Over-cooling | a. Ambient temperature extremely low | Partly cover radiator front area. |
b. Defective thermostat | Replace. | |
Engine coolant leaks | a. Loosened or damaged connecting units on hoses | Repair or replace. |
b. Leakage from water pump | Replace. | |
c. Leakage from water pipe | Repair or replace. | |
d. Leakage around cylinder head gasket | Retighten cylinder head bolts or replace cylinder head gasket. | |
e. Damaged or cracked cylinder head and cylinder block | Repair or replace. | |
f. Damaged or cracked thermostat cover | Repair or replace. | |
g. Leakage from radiator | Repair or replace. | |
Noise | a. Defective radiator fan | Replace. |
b. Defective water pump bearing | Replace water pump. | |
c. Defective water pump mechanical seal | Replace water pump. |
Vehicle dynamics control system Wiring diagram
WIRING SYSTEM > Vehicle Dynamics Control SystemWIRING DIAGRAM1. WITHOUT EyeSight2. WITH EyeSight ...
Hill start assist warning light/Hill start assist OFF indicator light
Hill
start assist warning light
While the engine is running, if there are
any malfunctions in the Hill start assist
system, the warning light will illuminate.
WARNING
When the Hill start assist warning
light illuminates, have the vehicle
inspected at an authorized SUBARU
dealer.
Hill st ...
Installation
CLUTCH SYSTEM > FlywheelINSTALLATION1. Press in a new pilot bearing to the position where it is flush with the flywheel surface or up to 0.4 mm (0.016 in) deeper than that.CAUTION:Do not press the bearing inner ring.(A)Pilot bearing2. Temporarily tighten the crankshaft position sensor plate and f ...