Sportage EX 2WD L4-2.0L (1997)
Radiator Cap: Testing and Inspection
NEGATIVE PRESSURE VALVE
1. Pull the negative pressure valve to open it. Check that it closes completely when released.
2. Check for damage on contact surfaces and for cracked or deformed seal packing.
3. Replace the radiator cap if necessary.
RADIATOR CAP VALVE
1. Remove foreign material (such as water residue) from between the radiator cap valve and the valve seat.
2. Attach radiator cap to a radiator cap tester (commercially available). Apply pressure gradually to 15 psi (103 kPa).
3. Wait about 10 seconds. Check that the indicated pressure has not decreased. Replace the radiator cap if the pressure has leaked off.
