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Engine Compression

Check engine compression with engine at normal operating temperature, all spark plugs removed and throttle wide open.

COMPRESSION SPECIFICATIONS

Application (1) Specification
Compression Ratio
1.5L (VIN A) 9.0:1
1.8L (VIN C) 9.5:1
2.0L
(VIN F) 8.5:1
(VIN Y) 9.6:1
2.4L (VIN G) 9.5:1
3.0L
(VIN H) 8.9:1
(VIN J) 10.0:1
(VIN K) 8.0:1
(VIN P) 9.0:1
3.5L (VIN M & P) 9.0:1
Compression Pressure
1.5L (VIN A) 192 psi (13.4 kg/cm2 )
1.8L (VIN C) 199 psi (13.9 kg/cm2 )
2.0L (VIN F) 178 psi (12.5 kg/cm2 )
2.0L (VIN Y) 170-225 psi (11.7-15.5 kg/cm2 )
2.4L (VIN G) 192 psi (13.4 kg/cm2 )
3.0L
(VIN H & P) 171 psi (12.0 kg/cm2 )
(VIN J) 185 psi (13.0 kg/cm2 )
(VIN K) 156 psi (10.9 kg/cm2 )
3.5L (VIN M & P) 171 psi (12.0 kg/cm2 )
Maximum Variation Between Cylinders (2) 14 psi (1.0 kg/cm2 )
(1) See ENGINE/VIN ID article for VIN information.
(2) On Eclipse 2.0L non-turbo engine, maximum variation between cylinders is 25 percent.