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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 156 (Engine Mechanical - 2.7L (L3B) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Engine Compression Test >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE:

    The battery must be at or near full charge.

  1. Connect a battery charger to the battery for the duration of the test to maintain an adequate battery level.
  2. Turn the engine OFF..
  3. Spark Plug - Remove - Gas Engine Ignition Spark Plug Replacement .
  4. Interrupt the fuel supply.
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