2008 Subaru Tribeca BaseFACTORY OEM SERVICE PROCEDURE

LH Side

Install in the reverse order of removal.

Tightening torque: 

Spark plug 

21 N.m (2.1 kgf-m, 15.5 ft-lb) 

Ignition coil 

16 N.m (1.6 kgf-m, 11.8 ft-lb) 

NOTE: The tightening torque described above should be applied to only new spark plugs without oil on their threads. In case their threads are lubricated, the torque should be reduced by approx. 1/3 of the specified torque in order to avoid over-stressing.
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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