T100 Regular Cab Pickup 2WD L4-2693cc 2.7L DOHC MFI (1998)
Radiator Cap: Testing and Inspection
1. REMOVE RADIATOR CAP
CAUTION: To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator are still hot, as fluid and steam
can be blown out under pressure.
2. INSPECT RADIATOR CAP
NOTICE: If the radiator cap has contaminations, always rinse it with water. Before using a radiator cap tester, wet the relief valve and pressure
valve with engine coolant or water.
Using a radiator cap tester, pump the tester and measure the relief valve opening pressure.
Standard opening pressure: 74 - 103 kPa (10.7 - 14.9 psi)
Minimum opening pressure: 59 kPa (85 psi)
HINT: Use the tester's maximum reading as the opening pressure. If the opening pressure is less than standard, replace the radiator cap.
2G4. REINSTALL RADIATOR CAP