Subaru Legacy/Outback

1999-2003 of release

Repair and operation of the car

Subaru of Legasi, Autbek
- Cars Subaru Legacy, Outback
   Identification numbers and information labels
   Acquisition of spare parts
   Technology of service, tool and equipment of a workplace
   Poddomkrachivaniye and towage
   Start of the engine from the auxiliary power supply
   Automobile chemicals, cleaners, sealants
   Diagnostics of malfunctions of knots and systems of the car
+ Operation manual
+ Routine maintenance
+ Engine
+ Cooling systems, heating
+ Power supply system and release
+ Electric equipment of the engine
+ Manual box and differential
+ Automatic transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Diagnostics of malfunctions of knots and systems of the car

The owners of cars who are carrying out procedures of routine maintenance of the vehicle it agrees the present manual of the schedule provided in the Head Routine maintenance will be extremely seldom compelled to address to materials of this Section. Reliability of the knots and components established on modern cars is so high that at timely performance of replacement of the materials of details which are worn out and failed as a result of aging the probability of their sudden refusal is smallest. Refusals seldom happen spontaneously and usually are a consequence time of long development of defect. In particular, failure of mechanical components practically is always preceded by emergence and evolution of the characteristic symptoms which are shown sometimes for many thousands of kilometers of run to the full. The same components which can fail unexpectedly, usually are not vital for functioning of the main knots and systems of the car, or are easily replaced in road conditions. A fundamental step at identification of the reasons of any refusal is the choice of a point of the beginning of searches. Often the reason is lying on a surface, however in certain cases it is necessary to work, making small investigation. The motorist who made half-dozens of casual checks of replacements and corrections quite has chance to find a cause of failure (or its symptom), however in any way it is impossible to call such approach reasonable, in view of its labor input and aimlessness of expenses of time and means. Quiet logical approach to search of the failed knot or component appears much more effective. Surely it is necessary to take into account everything preceding breakage, sometimes insignificant, symptoms and the guarding signals, such as loss of the power developed by the engine, change of indications of measuring instruments, emergence of unusual sounds and smells, etc. Do not forget that failure of such components as safety locks or spark plugs can be only a symptom more deeply of the hidden violation.

In this subsection rather simple scheme of diagnostics of the most often found refusals is given below. The reasons of violations and their symptoms are grouped in a sign of the relation to functioning of any concrete unit or system: "Engine", "Cooling system", etc.

Regardless of the refusal nature investigations of its reason are always taken the identical basic principles as a principle:

Make sure of correctness of definition of symptoms of refusal. Told means confidence in delimitation of the area of searches that is especially important with the help in refusal diagnostics to other motorist who cannot adequately state symptoms of the violation taking place.

Try not to look through obvious violations. For example, if the engine is not started, do not hesitate to check availability of fuel in a gasoline tank (thus it is not necessary to take on trust statements of the owner of the faulty car). In case of refusal electric equipments first of all it is necessary to check a state and reliability of fastening of terminal connections of an electrical wiring, only after it it makes sense to get diagnostic units.

Try to eliminate a cause of failure, but not its symptom. Replacement of the discharged battery new will help to make start of the engine, however the reason of a discharge of the old battery taking place remains not eliminated that will lead to fast failure and new. Similarly, replacement of the spark plugs thrown by oil will allow to restore serviceability of functioning of the engine for some time, however refusal by all means will soon repeat (if the reason lay not simply in application of candles not of that type).

Do not take on trust any statements! Remember that recently established "new" component can also be faulty, in particular, if it long time lay in a luggage carrier - it is not necessary to exclude a component from the list checked only for the reason that it is new or is recently established. In case of neglect it is not necessary to be surprised with implementation of this recommendation when the cause of failure established, at last, is lying on a surface from the very beginning.

Problem diagnostics and reasons of decrease in efficiency of return of the engine

The engine is not turned in attempt of its start

· The ignition switch is faulty.
· Polar plugs of the battery are oxidized, or weakened fastening of tips of wires on them.
· The battery is discharged or faulty.
· Serviceability of functioning of system of a charge is broken.
· It is torn off, or the electrical wiring of a chain of system of start is otherwise damaged, or weakened fastening of plugs of contact connections.
· The traction relay or the switch of a starter failed.
· The starter electric motor is faulty.
· Teeth of a driving gear wheel of a starter or a gear wreath of a flywheel are broken off or worn-out.
· The driving gear wheel of a starter is jammed in a gear wreath of a flywheel.
· The sensor switch of permission of start (model with AT) or the sensor switch of disconnection of a chain of a starter is faulty (models with RKPP)
· AT is not transferred to situation "P" or "N".
· The engine is jammed (it is jammed cranked or a camshaft, or there was a sticking any of pistons on a wall of the cylinder), - try to turn it manually for a bolt of a pulley of a cranked shaft.

The engine is turned, but not started

· The fuel tank is empty.
· The battery is discharged (the engine is turned too slowly).
· Polar plugs of the battery are oxidized, or weakened fastening of tips of wires on them.
· The starter is faulty.
· Passability of fuel lines is broken, the gasoline pump is faulty, or ventilating branch pipes of a fuel tank are blocked.
· Weakened bolts of fastening of a cover of a head of cylinders, or its sealing laying is damaged.
· Valves burned through, or density of their pressing to saddles is broken.
· The valve(s) core is damaged.
· The valvate spring(s) wore out or broke.
· Adjustment of gaps of valves is broken.
· Piston rings are worn-out or burned through.
· Fell, or compression pressure is unevenly distributed between engine cylinders.
· Moisture got to fuel.
· Unsuitable oil (low viscosity) is used
· The fuel injector(s) is faulty.
· Components of system of ignition are humidified or damaged.
· Serviceability of functioning of system of ignition is broken.
· Spark plugs are worn-out or damaged, or installation of interelectrode gaps is broken.
· Installation of a corner of an advancing of ignition is broken.
· The electrical wiring of a chain of system of ignition is torn off or is otherwise damaged, weakened fastening of plugs of contact connections, or the ignition coil is faulty.
· As a result of wear of components of the GRM drive installations of phases of gas distribution are broken.
· The gas-distributing belt / chain is torn off, or weakened effort of its tension.

Start of the cold engine is complicated

· The battery is discharged.
· Polar plugs of the battery are oxidized, or weakened fastening of tips of wires on them.
· Spark plugs are worn-out or damaged, or installation of interelectrode gaps is broken.
· The fuel supply system is faulty.
· Leak of fuel through an injector(s) takes place.
· Compression pressure fell.

Start of the hot engine is complicated

· The filtering air cleaner element is polluted, or its passability is otherwise broken.
· The fuel supply system is faulty (fuel does not arrive to injectors).
· Terminal connections of the battery are oxidized (especially weight).
· Quality of grounding of the power unit is broken.
· Serviceability of functioning of a fuel supply system or engine management is broken.
· Serviceability of functioning of system of catching of fuel evaporations (EVAP) is broken.
· Compression pressure fell.

Input of a starter in gearing is complicated, or is followed by extraneous noises

· Teeths of a driving gear wheel of a starter or a gear wreath of a flywheel are broken off or worn-out.
· Weakened or blurt out bolts of fastening of a starter.
· Internal components of a starter are worn-out or damaged.

The engine is started, but at once becomes deaf

· The electrical wiring of a chain of system of ignition is torn off or is otherwise damaged, or weakened fastening of plugs of contact connections on the module of ignition or the generator.
· Fuel starvation of an injector(s) takes place.
· The filtering air cleaner element is polluted.
· Depression losses take place.
· Installation of turns of idling is broken.
· Leak of the soaked-up air take place, or vacuum lines are damaged.
· Adjustment of gaps of valves is broken.
· Unsuitable oil (low viscosity) is used.
· Fell, or compression pressure is unevenly distributed between engine cylinders.
· Installation of a corner of an advancing of ignition is broken.
· Installations of phases of gas distribution are broken as a result of wear of components of the GRM drive.

During a parking under the engine are formed begin to flow oils

· Leaks through laying of the pallet of a case, or a drain stopper take place.
· Leaks through landing consolidation of the sensor switch of pressure of oil take place.
· Leaks through laying of a head of cylinders take place.
· Leaks through epiploons of shaft of the engine take place.
· Leaks in the oil pump take place.

Stability of turns of idling is broken

· Depression losses take place.
· The valve of system of recirculation of the fulfilled gases (EGR) is faulty.
· Passability of the valve of system of ventilation of a case (PCV) is broken.
· The filtering air cleaner element is blocked.
· The gasoline pump does not provide the demanded fuel consumption.
· Tightness of laying of a head of cylinders is broken.
· GRM drive elements are worn-out.
· Working ledges of cams of a camshaft(s) are worn-out.
· Adjustment of gaps of valves is broken.
· Burned through, or valves leaky nestle on the saddles.
· Installation of a corner of an advancing of ignition is broken.
· Serviceability of functioning of system of ignition is broken.
· Serviceability of functioning of the thermostatic air cleaner is broken.
· Spark plugs are worn-out or damaged, or installation of interelectrode gaps is broken.
· Fell, or compression pressure is unevenly distributed between cylinders.
· Passability fuel an injector(s) is broken.
· Installation of turns of idling is broken.

Admissions of ignition on single turns take place

· Spark plugs are worn-out or damaged, or installation of interelectrode gaps is broken.
· VV of a wire of spark plugs are faulty.
· Components of system of ignition are humidified or damaged.
· Short circuit in an ignition chain takes place.
· Quality of contact connections of VV of wires is broken, or is faulty the ignition module.
· The ignition coil is faulty.
· Components of system of decrease in toxicity are faulty, or passability of the respective highway is broken.
· Leaks in the EGR valve take place.
· Passability of the fuel filter is broken, or fuel is polluted.
· Depression losses take place.
· Installations of turns or quality of mix of idling are broken.
· Installation of a corner of an advancing of ignition is broken.
· Fell, or compression pressure is unevenly distributed between cylinders.
· Take place of loss of depression in the inlet pipeline, or through connecting vacuum hos