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Engine Compression Test

Removal Procedure

  1. Remove the throttle body. Refer to Throttle Body Assembly Replacement : 1.6L LDE, LXV, 1.8L 2H0, and LUW .
  2. Remove the spark plugs. Refer to Spark Plug Replacement .
  3. Remove the relay holder cover.
  4. Remove the fuel pump relay.

Measurement Procedure

Check Compression for all cylinders:

    Note: Engine revs at least 300/min.

  1. Start the engine (approx. 4 seconds).
  2. Compare the compression values.
  3. Maximum pressure differential 100 kPa (14.5 psi)

Installation Procedure

  1. Install the fuel pump relay.
  2. • Place into the socket.
    • Ensure the plug contacts are sound.
  3. Install the relay carrier cover.
  4. Install the spark plugs. Refer to Spark Plug Replacement .
  5. Install the throttle body. Refer to Throttle Body Assembly Replacement : 1.6L LDE, LXV, 1.8L 2H0, and LUW .
   


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© Copyright Chevrolet. All rights reserved