Mechanical Inspection: Compression

Check engine mechanical condition with a compression gauge, vacuum gauge, or an engine analyzer. If compression gauge is used, see COMPRESSION SPECIFICATIONS table. If vacuum gauge is used, check for low or unstable vacuum condition. If engine analyzer is used, see manufacturer's manual for specific instructions.

COMPRESSION SPECIFICATIONS

Application

Pressure/Minimum

Amigo, Rodeo, Trooper & VehiCROSS

2.2L

⁽¹⁾

3.2L & 3.5L

145 psi (10.2 kg/cm² )

Hombre

⁽²⁾ 100 psi (7.0 kg/cm² )

⁽¹⁾	Maximum pressure difference between any 2 cylinders is 14.5 psi (1.02 kg/cm² ).

⁽²⁾	Lowest cylinder compression reading can not be less than 70 percent of highest cylinder.