Toyota 4 Runner/Hilux/Surf

1987-1998 of release

Repair and car operation

Toyota 4Раннер
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Systems of heating, ventilation
- 5. Fuel and exhaust systems
   5.1. Specifications
   5.2. Order of a decompression of fuel system
   - 5.3. Fuel pump and pressure of fuel
      5.3.1. Pump check
      5.3.2. Check of pressure of fuel
      5.3.3. Check of a regulator of pressure of fuel
      5.3.4. Main relay of system of injection of fuel (EFI) and relay of the fuel pump
   5.4. Hoses and connections
   5.5. Fuel tank
   5.6. Fuel pump
   5.7. Fuel level sensor
   5.8. Air filter
   5.9. Butterfly valve cable
   + 5.10. System of electronic injection of fuel (EFI system)
   + 5.11. Units of system of injection of fuel
   5.12. Service of an exhaust system
   + 5.13. System of decrease in toxicity of exhaust gases
+ 6. Transmissions
+ 7. Transmission elements
+ 8. Brake system
+ 9. Suspension bracket and steering
+ 10. Body
+ 11. Electric equipment
+ 12. Electroschemes

5.3.3. Check of a regulator of pressure of fuel


Regulator arrangement on 4-cylinder engines

1. Regulator

2. Vacuum hose

3. Return hose

1. Disconnect and muffle a vacuum hose of a regulator of pressure of fuel. Connect to a regulator the manual vacuum pump. Start the engine and consider the indication of pressure of fuel without depression on a regulator. Create depression in a regulator and again consider pressure of fuel. With depression growth on a regulator pressure of fuel should decrease. Compare pressure to the standard.
2. Attach a vacuum hose to a regulator and check pressure of fuel idling. Compare pressure to the standard. Disconnect a hose and again consider pressure, – as soon as the hose is disconnected pressure should increase jump to the top standard limit. If pressure of fuel idling at the disconnected hose too high, measure by the vacuum gage depression size on a vacuum hose. If the vacuum gage shows nothing, check tightness of the hose, soaking-up collector and the leveling chamber.
3. If pressure of fuel lowered, reliably press a return gasoline pipe line and consider indications of pressure of fuel. If pressure does not increase, the fuel pump is faulty, or the highway of supply of fuel is littered. If pressure sharply increased, replace a pressure regulator.
4. If pressure of fuel too high, execute a system decompression, disconnect a return gasoline pipe line and blow. If the gasoline pipe line is not littered, a pressure regulator.
5. If the behavior of pressure differs from described in point 2, a regulator of pressure replace.
6. Execute a decompression and remove a manometer.
7. Wrap the union of the distributor of fuel, previously having replaced laying.
8. Wipe the spilled gasoline. Start the engine and check existence of a leak of gasoline.