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Ford WSG-1068 — Pinpoint Test A: Loss of Coolant

Testing & diagnosis · Cooling system

For the Ford WSG-1068, from the Ford service manual.

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Before you start

  • NEVER REMOVE THE PRESSURE RELIEF CAP WHILE THE ENGINE IS OPERATING OR WHEN THE COOLING SYSTEM IS HOT.

Procedure

  1. Check engine coolant level at the degas bottle; refill as necessary.
  2. Check the pressure relief cap; install new cap if defective.
  3. Check the engine coolant for internal leak (oil evident in coolant).
  4. Check the engine block for coolant (coolant evident in oil).
  5. Check the coolant recovery system; inspect the pressure relief cap for foreign material.
  6. Check the degas bottle for leaks; install new if leaking.

Source: Ford service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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