Ford Workshop Service and Repair Manuals > Escort ZX2 L4-2.0L DOHC VIN 3 (2000) > Engine, Cooling and Exhaust | Cooling System | Heater Core | Component Information | Service Precautions

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tester to the adapter.

4. Apply 241 kPa (35 psi) of air pressure to the heater core. Submerge the heater core in water.

5. If a leak is observed, install a new heater core.

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