Impreza 2.5 RS Sedan AWD F4-2.5L SOHC (2002)
INSPECTION
1. Check radiator for leakage, filling it with coolant and attach radiator cap tester (A) to the filler neck. Then apply a pressure of 157 kPa (1.6
kg/sq.cm, 23 psi) and check the following points:
-
Each portion of radiator for leakage
-
Hose joints and other connections for leakage
CAUTION: When attaching or detaching tester and when operating tester, use special care not to deform radiator filler neck.
NOTE:
-
When performing this check, be sure to keep the engine stationary and fill radiator with coolant.
-
Wipe off check points before applying pressure.
-
Use care not to spill coolant when detaching tester from radiator.
2. Check the radiator cap valve open pressure using radiator cap tester.
CAUTION: Rust or dirt on cap may prevent valve from functioning normally: be sure to clean cap before testing.
-
Raise the pressure until the needle of gauge stops and see if the pressure can be retained for five to six seconds. The radiator cap is normal if a
pressure above the service limit value has been maintained for this period.
