Toyota RAV4 manuals

Toyota RAV4 Service Manual: Cooling system

On-vehicle inspection

  1. Check cooling system for lea

    ks

  1. Remove the radiator reservoir cap.

Caution:

To avoid the danger of being burned, do not remove the radiator reservoir cap while the engine and radiator are still hot. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator reservoir.

Toyota RAV4. Check cooling system for leaks


  1. Fill the radiator and reservoir with coolant, and then attach a radiator cap tester.
  2. Warm up the engine.
  3. Pump the radiator cap tester to 118 kpa (1.2 Kgf/ cm2, 17.1 Psi), and then check that the pressure does not drop.

    If the pressure drops, check the hoses, radiator and water pump for leakage.

    If there are no signs of external coolant leaks, check the heater core, cylinder block and head.

  4. Reinstall the radiator reservoir cap.
  1. Check engine coolant level of reservoir

Toyota RAV4. Check engine coolant level of reservoir


  1. The engine coolant should be between the low and full lines when the engine is cold.

    If low, check for leakage and add toyota super long life coolant (sllc) or similar high quality ethylene glycol based non-silicate, non-amine, nonnitrite, and non-borate coolant with long-life hybrid organic acid technology up to the full line

  1. Check engine coolant quality

  1. Remove the radiator reservoir cap.

Caution:

To avoid the danger of being burned, do not remove the radiator reservoir cap while the engine and radiator are still hot. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator.

  1. Check for any excessive deposits of rust or scale around the radiator reservoir cap and radiator filler hole; the coolant should be free of oil.

    If excessively dirty, replace the coolant.

  2. Install the radiator reservoir cap.
Battery current sensor
On-vehicle inspection Check battery current sensor assembly Measure the resistance of the sensor. Standard resistance If the result is not as specified, replace the sensor assembly. ...

Cooling fan system
Parts location System diagram On-vehicle inspection Hint: It is normal for the cooling fan to sometimes rotate when the ignition switch is turned from acc to on. Check cooling fan ope ...

Other materials:

Stop light switch circuit
Description While driving with the cruise control, if the ecm detects that the brake pedal is depressed, the cruise control operation will be canceled. The stop light switch sends brake pedal status signals to the ecm. When the brake pedal is not depressed, terminal st1- is equal to the ...

Check for intermittent problems
Check for intermittent problems Hint: A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ecus can be detected by using the ecu data list function of an intelligent tester. Turn the ignition switch off and connect the intelligent test ...

Blower motor circuit
Description The blower motor is operated by signals from the air conditioning amplifier. Blower motor speed signals are transmitted in accordance with changes in the duty ratio. Wiring diagram Inspection procedure Perform active test by intelligent tester (blower motor) Conne ...

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