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Mechanical Inspection: Compression

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 Kia Sportage, 2002 Kia Spectra, 2002 Kia Sedona, 2002 Kia Rio, and 2002 Kia Optima. However, it is still accessible from the selected car via links, so may be relevant.

Ensure battery is fully charged. Turn ignition off. Disconnect ignition coils. Check engine compression with engine at normal operating temperature at specified cranking speed, all spark plugs removed, and throttle wide open. See COMPRESSION SPECIFICATIONS  table.

COMPRESSION SPECIFICATIONS

Application (1) Specification - psi (kPa) @ RPM
Optima & Magentis (Canadian)
2.4L 178 (1227) @ 250-400
2.7L (2) 170 (1200)
Rio 184 (1275) @ 300
Sedona (2) 170 (1200)
Spectra 193 (1331) @ 300
Sportage 163 (1124) @ 270
(1) Maximum difference between cylinders is not to exceed 14 psi (100 kPa).
(2) At cranking speed. Cranking RPM not available from manufacturer.