Component Tests and General Diagnostics
Engine Coolant Leak Check1. Loosen cap.
2. Confirm that the engine coolant level is up to the filler neck.
3. Install an adapter and cap adapter to the water outlet fitting and apply 160 kPa (23 psi) pressure. Hold pressure for two minutes, while checking for leakage from the radiator, hose or connections.
WARNING: When pressure testing the cooling system, slowly release cooling system pressure to avoid getting burned by hot coolant. Be sure to completely clean away any moisture from the places checked. When the tester is removed, be careful not to spill any engine coolant from it. Be careful, when installing and removing the tester and when testing, not to deform the water outlet fitting.
4. If there is leakage, repair or replace the appropriate part.