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Engine Mechanical: Compression

On 2.4L, compression should not be less than 689 kPa (100 psi) and not vary more than 25 percent from cylinder to cylinder.

ENGINE COMPRESSION SPECIFICATIONS

Engine Specification
  2.4L
    Compression Ratio 9.5:1
    Pressure Range 170 to 225 psi (1172 to 1551 kPa)
  4.0L (1)
    Compression Ratio 8.8:1
(1) Pressure range is not available from manufacturer.