Engine Compression

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

1.3L

⁽¹⁾ 192 psi (13.5 kg/cm² )

1.8L

⁽¹⁾ 218 psi (15.3 kg/cm² )

1.9L

190 psi (13.4 kg/cm² )

2.2L, 2.4L, 3.0L, 3.1L, 3.4L, 3.8L & 5.7L

⁽²⁾

3.5L, 4.0L & 4.6L

⁽³⁾

Minimum Compression Pressure

1.3L

⁽¹⁾ 156 psi (11.0 kg/cm² )

1.8L

⁽¹⁾ 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 & 5.7L

⁽²⁾

3.5L, 4.0L & 4.6L

⁽³⁾

⁽¹⁾	No cylinder compression reading should be less than 15 psi (1.1 kg/cm² ) 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 100 psi (7.0 kg/cm² ).

⁽³⁾	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 ).