2001 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE

Engine Compression

COMPRESSION SPECIFICATIONS

Application Specification
Compression Pressure (1)
2.2L & 2.5L (2) 156-185 psi (11.0-13.0 kg/cm2 )
3.0L (3) 185-213 psi (13.0-15.0 kg/cm2 )
(1) Maximum variation between cylinders is 7 psi (.5 kg/cm2 ).
(2) Engine cranking at 200-300 RPM with throttle open fully.
(3) Engine cranking at 350 RPM with throttle open fully.
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:

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

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