Toyota 4 Runner/Hilux/Surf

1987-1998 of release

Repair and operation of the car

Toyota 4ranner
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
- 4. Systems of heating, ventilation
   4.1. Specifications
   4.2. Antifreeze
   4.3. Thermostat
   4.4. Krylchatka of the fan and hydraulic clutch
   4.5. Radiator and tank
   4.6. Oil cooler
   + 4.7. Pump
   4.8. Liquid temperature sensor
   4.9. Electric motor and chain of the fan of a heater
   4.10. Heater radiator
   4.11. Control panel of the conditioning block
   - 4.12. Air conditioning system
      4.12.1. Check of gas station of coolant
      4.12.2. Heater
   4.13. Compressor
+ 5. Fuel and exhaust systems
+ 6. Transmissions
+ 7. Transmission elements
+ 8. Brake system
+ 9. Suspension bracket and steering
+ 10. Body
+ 11. Electric equipment
+ 12. Electrical circuitries


4.12.1. Check of gas station of coolant


Main units of the cooling system of air

1, 8. The sucking-in hose
2. A tube with liquid coolant
3. Evaporator
4. Broad valve
5. Final hose (engine of 2,7 l)
6. Final hose (engine of 3,4 l)
7, 12, 13. A tube with the liquefied coolant
9. Compressor
10. Condenser
11. Moisture separator

1. Warm up the engine.
2. Transfer temperature regulator rychazhok to the situation corresponding to the lowest temperature, establish the highest speed of the fan. Open doors.
3. Check turning on of the compressor at which the click of the electromagnetic coupling sounds, and the central part of the coupling begins to rotate. After the system comes to an operating mode, compare temperature of two tubes of the compressor (shooters specified fastenings of tubes). If temperature to the touch poorly differs, then gas station is necessary.
4. On the working conditioner bring the thermometer to the central part of the canal of an air outlet. Air temperature at the exit from the channel has to be 17-20 °C lower than ambient temperature. If air temperature very high, for example 45 °C, then air temperature at the exit from the conditioner can reach 15 °C though in as a rule temperature of the cooled air ambient temperatures are 17-20 °C lower. If temperature of the cooled air is higher than standard, then refueling of the conditioner coolant is necessary.
5. Further works with the conditioner are beyond this manual and have to be carried out by the prepared personnel.
6. Check a condition of coolant through viewing glass (it is specified by an arrow). If at the working conditioner in glass foaming is observed, then the amount of coolant is not enough. At high temperature of the environment in viewing glass bubbles, even can be observed during normal filling of coolant. When the conditioner is switched off and the amount of coolant normal in viewing glass is observed small foaming which disappears subsequently.