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Measurement Procedure

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.

Check Compression for all cylinders:

  1. GM3216227

    Install the EN-51150  compression / pressure adapter (1) into the spark plug hole for the cylinder that is being checked.

  2. Install a compression tester to the EN-51150  compression / pressure adapter.
    3. NOTE:

    Engine revs at least 300/min.

  3. Start the engine (approx. 4 seconds).
  4. Compare the compression values.

    Maximum pressure differential 100 kPa (14.5 psi)

  5. Transfer the EN-51150  compression / pressure adapter to the next spark plug hole.
  6. Repeat the process for the remaining cylinders.
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