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Toyota Corolla Repair Manual: Onvehicle inspection

1. Inspect cooling system for leaks

Caution:

Caution

: to avoid the danger of being burned, do not remove the radiator cap while the engine and radiator are still hot, as fluid and steam can be blown out under pressure.

  1.  fill the radiator with coolant and attach a radiator cap tester.
  2.  warm up the engine.
  3.  pump it to 118 kpa (1.2 Kgf/cm2, 17.1 Psi), and check that the pressure does not drop.

Hint

: if the pressure drops, check the hoses, radiator or water pump for leaks. If no external leaks are found, check the heater core, cylinder block and head.

2. Check engine coolant level at reservoir

  1.  the engine coolant level should be between the low and full line.

Hint

: if low, check for leaks and add toyota long life coolant or equivalent up to the full line.

3. Check engine coolant quality

  1.  remove the radiator cap.

Caution

: to avoid the danger of being burned, do not remove the radiator cap while the engine and radiator are still hot, as fluid and steam can be blown out under pressure.

  1.  check if there is any excessive deposits of rust or scale around the radiator cap and radiator filler hole; the coolant should be free from oil.

Hint

: if excessively dirty, replace the coolant.

  1.  reinstall the radiator cap.

4. Inspect fins blockage

  1. If fins are clogged, wash them with water or a steam cleaner and dry with compressed air.

Notice

:

Cooling system
...

Inspection
1. Thermostat Hint: the thermostat is numbered with the valve opening temperature. Immerse the thermostat in water and gradually heat the water.  check the valve opening temperature ...

Other materials:

Malfunction in fuel receiver gauge
Wiring diagram Inspection procedere 1 Inspect fuel sender gage assy Disconnect the connector fuel sender gauge. check the float position between e and f and measure the resistance between terminals 2 and 3 of the connector. Check that the resistance value changes continuously. S ...

What to do if... (Troubleshooting)
If there is a problem with the hands-free system or a Bluetooth device, first check the table below. ► When using the hands-free system with a Bluetooth device ► When registering/connecting a cellular phone ► When making/receiving a call ► When using the pho ...

Diagnostic trouble code chart
Hint: as for the vehicle for mexico, refer to repair manual 2003 corolla (pub. No. Rm938u). Parameters listed in the chart may not be exactly the same as your readings due to the type of instrument or other factors. If a malfunction code is displayed during the dtc check in the check mod ...

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