Radiator Fan and Condenser Fan Drive Circuit
Refer to INSPECTION PROCEDURE 3: RADIATOR FAN AND CONDENSER FAN DO NOT OPERATE .
Refer to INSPECTION PROCEDURE 3: RADIATOR FAN AND CONDENSER FAN DO NOT OPERATE .
Refer to INSPECTION PROCEDURE 3: RADIATOR FAN AND CONDENSER FAN DO NOT OPERATE .
ENGINE COOLANT LEAK CHECK
| WARNING | When pressure testing the cooling system, slowly release cooling system pressure to avoid getting burned by hot coolant. |
| CAUTION | Be sure to completely clean away any moisture from the places checked. When the tester is taken out, be careful not to spill any coolant. Be careful when installing and removing the tester and when testing not to deform the filler neck of the radiator. |
Scheme 55
- Check that the coolant level is up to the filler neck. Install a radiator tester and apply 160 kPa (23 psi) pressure, and then check for leakage from the radiator hose or connections.
- If there is leakage, repair or replace the appropriate part.
RADIATOR CAP PRESSURE CHECK
Note. Be sure that the cap is clean before testing. Rust or other foreign material on the cap seal will cause an improper reading.
Scheme 56
- Use a cap adapter to attach the cap to the tester.
- Increase the pressure until the indicator of the gauge stops moving. Minimum limit: 83 kPa (12 psi) Standard value: 93 - 123 kPa (14 - 18 psi)
- Replace the radiator cap if the reading does not remain at or above the limit.
FAN CONTROL RELAY CONTINUITY CHECK
| BATTERY VOLTAGE | TERMINAL NO. TO BE CONNECTED TO TESTER | CONTINUITY TEST RESULTS |
|---|---|---|
| Not applied | 4 - 2 | Open circuit |
| Connect terminal No.1 and battery (-) terminal. | 4 - 2 | Less than 2 ohms |
| Connect terminal No.3 and battery (+) terminal. | 4 - 2 | Less than 2 ohms |
FAN CONTROL RELAY CONTINUITY
Scheme 57
Scheme 58
- Remove the radiator fan motor connector.
- Check to see that the fan motor of the radiator turns when applying battery power between the connector terminals of the radiator fan motor. Also check to see that there is no abnormal sound coming from the radiator fan motor at this time.
- If the radiator fan motor is defective, replace it.
Scheme 59
<< A >> RADIATOR UPPER HOSE/RADIATOR LOWER HOSE DISCONNECTION
Make mating marks on the radiator hose and the hose clamp. Disconnect the radiator hose.
Scheme 60
<< A >> RADIATOR LOWER HOSE DISCONNECTION
Make mating marks on the radiator hose and the hose clamp. Disconnect the radiator hose.
Scheme 61
<< A >> RADIATOR UPPER HOSE DISCONNECTION
After making mating marks on the radiator hose and hose clamp, disconnect the radiator hose.
Scheme 62
Water Pipe and Hose Check
Check the water pipe and hose for cracks, damage and clogs. Replace them if necessary.
COOLANT
| ITEM | QUANTITY dm 3 (qt) |
|---|---|
| Long Life Antifreeze Coolant or equivalent | 7.0 (7.4) |
COOLANT SPECIFICATIONS
SEALANT
| ITEM | SPECIFIED SEALANT |
|---|---|
| Cylinder block drain plug | 3M(tm) ADD Part NO.8731 or equivalent |
| Thermostat housing assembly, Water outlet fitting | 3M(tm) ADD Part NO.8672, 3M(tm) ADD Part NO.8679/8678 or equivalent |
| Thermostat housing assembly bolt | 3M(tm) ADD Part NO.4170 or equivalent |
SEALANT SPECIFICATIONS