RAV4 PAB4-Toyota Toyota
1. Car operation
2. Maintenance
3. Engines
4. Cooling and conditioning systems
5. Fuel system and system of production of the fulfilled gases
   General information
   Technical characteristics of system of injection of fuel
   Sbrasyvaniye of pressure in fuel system
   General check of fuel system
      Check of the fuel pump
      Check of fuel tubes, hoses and their connections
   Fuel pump
   Regulator of pressure of fuel
   Fuel level sensor
   Fuel tank
   Case of the air filter
   Accelerator cable
   Electronic system of injection of fuel
   Damper of pulsations of fuel on models since 2001
   Distributive fuel highway and nozzles
   System of production of the fulfilled gases
6. Ignition system
7. The monitoring system and decrease in toxicity of the fulfilled gases
8. Coupling
9. Transmission
10. Driveshaft and shaft of a drive of driving wheels
11. Brake system
12. Suspension bracket
13. Steering and running gear
14. Body
15. Electric equipment
Electric equipment schemes




Toyota RAV4>> Fuel system and system of production of the fulfilled gases>> General check of fuel system>> Check of fuel tubes, hoses and their connections
Check of fuel tubes, hoses and their connections carry out as follows.
Dump pressure in fuel system.
Metal fuel tubes are laid under the bottom of the car and fixed by clips and screws-samorezami. Periodically examine them on absence of leaks and damages.
If at replacement of the fuel filter in it and fuel pipelines there is a dirt, surely disconnect pipelines and blow them the compressed air. Also check a condition of the mesh filter on the block of the fuel pump.
Never use copper or aluminum tubes instead of steel tubes established on the car as they can not sustain vibrations at car operation.
As fuel tubes are under a high pressure, they demand special service.
Some fuel tubes have carving connections with sealing rings which are necessary for unscrewing before service or replacement of components. In such connections konusny nuts which nuts at a tightening, in addition press out connection are used. Sealing rings check on lack of cracks and damages and if necessary replace. If replacement of steel tubes is carried out, establish only original tubes.
Flexible fuel hoses should settle down at distance not less than 100 mm from elements of system of production of the fulfilled gases and 250 mm from catalytic converter.
On some models establish nylon fuel hoses with quick-detachable connectors. In this case in need of replacement of one hose make replacement of hoses complete with quick-detachable connectors.
Replacement of fuel tubes/hoses make as follows.
Dump pressure in fuel system.
Release all clips, fixing a tube/hose to a car body.
On usual connections of a steel fuel tube and a hose, weaken a collar, then extend a tube of their hose. Provorachivaniye in different directions a tube and a hose facilitates separation process.

Fig. 5.3. Opening of a clip (1) quick-detachable connector


Fig. 5.4. Pressing of clamps and tube extraction from a quick-detachable connector


If connection of hoses is carried out by a quick-detachable connector, open and remove a clip, then one hand from two parties press clamps, and other hand take a tube from a connector (fig. 5.3, 5.4) .
At connection of tubes and hoses surely establish new sealing rings (if it is provided by a design).
On quick-detachable connectors combine a tube with a connector and insert a tube into a connector to a zashchelkivaniye it clamps.

Fig. 5.5. Usual connection of a hose with a steel tube: 1–steel tube; 2–hose; 3–collar


At usual connection of a hose with a steel tube pull a hose over a tube and fix connection by a collar (fig. 5.5) .