Inspection Procedure 3

Inspection Procedure 3 (The coolant temperature rises abnormally)
Diagnosis

STEP 1. Check the radiator cap valve opening pressure.

NOTE: Be sure that the cap is clean before testing, since rust or other foreign material on the cap seal will cause an improper reading.





1) Use a cap adapter to attach the cap to the tester.
2) Increase the pressure until the gauge indicator stops moving.
Minimum limit: 64 kPa (9.2 psi)
Standard value: 73 -103 kPa (11 - 15 psi)
3) If normal, go to Step 2. If the reading does not remain at or above the minimum limit, replace the radiator cap. Then go to Step 4.

STEP 2. Check thermostat operation.
If faulty, replace the thermostat. Then go to Step 4.
If normal, go to Step 3.

STEP 3. Check the drive belt for loosening or damage.
Refer to Drive Belt; Alternator.
If faulty, adjust or replace the drive belt. Then go to Step 4.

STEP 4. Check trouble symptoms.
Check that the coolant temperature is not abnormally high.