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Engine Compression

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2002 Saturn SL2, 2002 Saturn SL1, 2002 Saturn SL, 2002 Saturn SC2, and 2002 Saturn SC1. However, it is still accessible from the selected car via links, so may be relevant.

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

ENGINE COMPRESSION SPECIFICATIONS

Application Specification
Normal Compression Pressure psi (kPa)
1.8L (1) 218 (1500)
1.9L 185-205 (1276-1414)
3.5L
Aurora 140-170 (965-1172)
Intrigue (2)
4.0L & 4.6L 140-170 (965-1172)
All Others (3)
Minimum Compression Pressure
1.8L (1) 145 (1000)
1.9L 180 psi (1241 kPa)
3.5L
Aurora (4)
Intrigue (2)
4.0L & 4.6L (2)
All Others (3)
(1) No cylinder compression reading should be less than 15 psi (100 kPa) of highest compression reading.
(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 (965 kPa).
(3) Lowest compression reading should not be less than 70 percent of highest compression reading. No cylinder compression reading should be less than 100 psi (690 kPa).
(4) Information is not available from manufacturer.
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