1996-2001 of release
Repair and car operation
+ 1. Maintenance instruction
+ 1.2. Information before car driving
+ 1.3. Independent maintenance
+ 1.4. Technical characteristics
+ 1.5. Some councils upon car purchase
+ 2. Maintenance
- 3. Engines
+ 3.1.2. Compression check
+ 3.2. 6-cylinder dvukhryadny engines of V6 3,0 l
+ 3.3. Partition of engines
- 3.4. Engine electric equipment
3.4.2. Technical characteristics
3.4.3. Storage battery
3.4.4. Power cables
3.4.5. Ignition system
3.4.6. Coil (and) ignitions
3.4.7. Check of the moment of ignition
3.4.8. Block of electronic ignition
3.4.9. System of a charge of the battery
3.4.11. Tension and brush regulator
3.4.12. System of start-up of the engine
3.4.13. Starter electric motor
3.4.14. Traction relay
3.4.15. Main malfunctions of electric equipment
3.4.16. That it is necessary to know to the owner of the car with the injector engine
3.4.17. Turbo doctor
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. Exhaust system
+ 8. Transmission
+ 9. Running gear
+ 10. Brake system
+ 11. Body
+ 12. Electric equipment
Standard system of ignition of considered cars
Considered cars are equipped with ignition system without the distributor (so-called DIS system) in which one coil is the share of two cylinders.
In DIS system two-spark ignition is used. The spark appears at the same time in two cylinders, the piston of one makes a compression step, and another – a release step. And, in the first of these cylinders the capacity of the spark category much more exceeds category capacity in the second in which the spark is used only for reburning of the remains of not burned down gas mixture. On V6 engines the spark is created in pairs of cylinders 1-4, 2-5, 3-6, and in 4-cylinder – 1–4 and 3–2.
The structure of DIS system of ignition includes sensors of rotation of a cam-shaft and the crankshaft, the processor (PCM module), coils and the electronic module. The processor forms identification signals for each cylinder which start the electronic module switching coils of ignition. The processor block automatically regulates the ignition moment in reply to the signals arriving from various sensors of the car. The electronic module distributes signals on the corresponding coils and sets delay time before coil switching according to a current in primary chain.
On V6 engines of a candle of the left head of cylinders are inserted directly into sockets on coils, and candles of the right head of cylinders incorporate to coils wires. On 4-cylinder engines of the coil are mounted near a head of cylinders, candles incorporate to coils wires. The electronic module is mounted on V6 engines near the main cylinder of brakes, under the assembly block of the relay, on 4-cylinder engines the module is built in in not folding way a casing of coils and changes together with them.
Connect a tachometer according to the instruction of the manufacturer. Some tachometers are incompatible with system of electric equipment of the car. Before acquisition of a tachometer consult in car-care center service.
Do not allow a contact of conclusions of the coil of ignition with weight.
It is forbidden to disconnect the battery from weight on the working engine.
Constantly watch that the block of electronic ignition was reliably connected to weight.
Start the engine and check spark existence.
If the spark is observed, turn out candles and check their condition.
If the spark is absent, or an iskroobrazovaniye unstable, check tension from the battery on each coil. If tension is, check resistance of windings of the coil.
Check on coils a signal from the processor (on the 4-cylinder engine) or from the electronic block (on the V6 engine).
Check also existence of fluctuating tension 0,1–4,0 In on a conclusion 2 sockets (for this purpose the assistant should include a starter). If on sockets of coils tension does not correspond to these norms, replace or repair the processor block, otherwise 5 replace the coil with the electronic block.