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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Engine Mechanical - 1.8L (LKN)) >> Diagnostic Information and Procedures >> Engine Compression Test >> Measurement Procedure

Measurement Procedure

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

Check Compression for all cylinders:

  1. GM3216227Courtesy of GENERAL MOTORS COMPANY

    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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