2001 Oldsmobile BravadaFACTORY OEM SERVICE PROCEDURE

Engine Compression

ENGINE COMPRESSION SPECIFICATIONS

Application Specification
Normal Compression Pressure
2.0L 199 psi (14 kg/cm2 )
2.5L 199-227 psi (14-16 kg/cm2 )
6.5L (1)
6.6L 300 psi (21 kg/cm2 )
All Others (2)
Minimum Compression Pressure
2.0L 170 psi (12 kg/cm2 )
2.5L 185 psi (13 kg/cm2 )
6.5L (1)
6.6L 250 psi (18 kg/cm2 )
All Others (2)
(1) Lowest compression reading should not be less than 80 percent of highest compression reading. No cylinder compression reading should be less than 370 psi (27 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 100 psi (7 kg/cm2 ).
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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