Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Jeep Commander 4WD V6-3.7LFACTORY OEM SERVICE PROCEDURE
Spark Plug: Specifications
SPARK PLUG SPECIFICATIONS
SPARK PLUG TORQUE
3.7L
Spark Plugs 27 Nm (20 Ft. Lbs.)
4.7L
New Plugs 27+/-3 Nm (20 Ft. Lbs)
Used Plugs 22+/-3 Nm (16 Ft. Lbs.)
5.7L
Spark Plugs 18+/-3 Nm (13 +/-2 Ft. Lbs)
Factory Service Tools
Use the Manual With the Right Hardware
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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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