Radiator: Testing and Inspection

2AZ-FE COOLING: RADIATOR: ON-VEHICLE INSPECTION

1. CHECK RADIATOR RESERVOIR CAP SUB-ASSEMBLY





(a) Measure the valve opening pressure.

(1) If there are water stains or foreign matter on O-ring 1, clean it with water and finger scouring.

(2) Check that O-ring 1 is not deformed, cracked or swollen.

(3) Apply engine coolant to O-ring 1 and rubber packing 2 before using a radiator cap tester.





(4) When using the cap tester, tilt it more than 30 degrees.

(5) Pump the cap tester several times, and check the maximum pressure*.

Pump speed:

1 pump per second

(6) *: Even if the cap cannot maintain the maximum pressure, it is not a defect.

Judgment criterion:





(7) If the maximum pressure is less than the minimum standard value, replace the radiator reservoir cap sub-assembly.