Engine Compression

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 Saturn LW300, 2003 Saturn LW200, 2003 Saturn L300, 2003 Saturn L200, and 2003 Saturn Ion 3. 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

psi (kPa)

Normal Compression Pressure

⁽¹⁾

Ion

⁽¹⁾

"L" Series

2.2L

⁽¹⁾ 185-225 (1275.58-1551.38)

3.0L

⁽²⁾ 190 (1310)

Minimum Compression Pressure

Ion

⁽¹⁾

"L" Series

2.2L

⁽¹⁾

3.0L

⁽²⁾ 180 (1241)

⁽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 (690 kPa).

⁽²⁾	At 250 RPM (open throttle).