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.
2009 Jeep Commander 4WD V6-3.7LFACTORY OEM SERVICE PROCEDURE
Engine Torque Specifications
TORQUE
Cylinder Head Torque
Step 1: Tighten bolts 1-8 27 Nm (20 ft. lbs.).
Step 2: Verify that bolts 1-8 all reached 27 Nm (20 ft. lbs.), by repeating step 1 without loosening the bolts. Tighten bolts 9 thru 12 to 14 Nm (10 ft. lbs.).
Step 3: Tighten bolts 1-8 90 °.
Step 4: Tighten bolts 1-8 90 °, again. Tighten bolts 9-12, 26 Nm (19 ft. lbs.)
Head Bolt Reuse/Replace
The cylinder head bolts are tightened using a torque plus angle procedure. The bolts must be examined BEFORE reuse. If the threads are necked down the bolts should be replaced.
Intake Manifold
Camshaft Bearing Cap
Main Bearing Cap Torque
Hand tighten bolts 1D,1G and 1F until the bedplate contacts the block.
Tighten bolts 1A - 1J 54 Nm (40 ft. lbs.)
Tighten bolts 1 - 8 7 Nm (62 in. lbs.)
Turn bolts 1 - 8 an additional 90°.
Tighten bolts A - E 27 Nm ( 20 ft. lbs.).
Flex Plate
Oil Pump
Exhaust Manifold
Start at the center arm and working outward.
Water Pump
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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