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Home >> Saturn >> 1999 >> SW1 Automatic >> Repair and Diagnosis >> Engine Performance >> Specifications >> Engine Control System - Service & Adjustment Specifications >> Mechanical Checks >> Engine Compression

Engine Compression

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

COMPRESSION SPECIFICATIONS

Application Specification
Normal Compression Pressure
1.0L 199 psi (14.0 kg/cm2 )
1.3L 192 psi (13.5 kg/cm2 )
1.8L 218 psi (15.3 kg/cm2 )
1.9L 185-205 psi (13.0-14.4 kg/cm2 )
2.2L, 2.4L, 3.0L, 3.1L, 3.4L, 3.8L, 4.0L, 4.6L & 5.7L (1)
3.5L (2)
Minimum Compression Pressure
1.0L & 1.3L 156 psi (11.0 kg/cm2 )
1.8L 145 psi (10.2 kg/cm2 )
1.9L 180 psi (12.7 kg/cm2 )
2.2L, 2.4L, 3.0L, 3.1L, 3.4L, 3.8L, 4.0L, 4.6L & 5.7L (1)
3.5L (2)
(1) Lowest compression reading should not be less than 70 percent of highest compression reading. No cylinder compression reading should be less than 100 psi (7.0 kg/cm2 ).
(2) Lowest compression reading should not be less than 70 percent of highest compression reading. No cylinder compression reading should be less than 140 psi (9.8 kg/cm2 ).