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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSJEEP2001WRANGLER L4-2.5L VIN PREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER HEAD ASSEMBLYSYSTEM SPECIFICATIONSTORQUE SPECIFICATIONSCYLINDER HEAD BOLT TORQUE
2001 Jeep Wrangler L4-2.5L VIN P
Cylinder Head Bolt Torque
2001 Jeep Wrangler L4-2.5L VIN PSECTION Cylinder Head Bolt Torque
CYLINDER HEAD BOLT TORQUE/SEQUENCE
Tighten the engine cylinder head bolts in sequence according to the following procedure:
a. Tighten all bolts in sequence (1 through 10) to 30 Nm (22 ft. lbs.) torque.
b. Tighten all bolts in sequence (1 through 10) to 61 Nm (45 ft. lbs.) torque.
c. Check all bolts to verify they are set to 61 Nm (45 ft. lbs.) torque.
d. Tighten bolts (in sequence):
- Bolts 1 through 6 to 149 Nm (110 ft. lbs.) torque.
- Bolt 7 to 136 Nm (100 ft. lbs.) torque.
- Bolts 8 through 10 to 149 Nm (110 ft. lbs.) torque.
Cylinder Head Bolts #1-10 & #12-14 149 Nm (110 ft. lbs.)
Cylinder Head Bolt #11 135 Nm (100 ft. lbs.)
Cylinder Head Cover Bolts 13 Nm (115 inch lbs.)
Exhaust Manifold
Bolt #1 41 Nm (30 ft. lbs.)
Bolts #2-5 31 Nm (23 ft. lbs.)
Nuts 6 and 7 14 Nm (126 inch lbs.)
Spark Plugs 37 Nm (27 ft. lbs.)
Thermostat Housing Bolts 18 Nm (156 inch lbs.)
CYLINDER HEAD BOLT RE-USABILITY
If this was the first time the bolts were removed, put a paint dab on the top of the bolt. If the bolts have a paint dab on the top of the bolt or it isn't known if they were used before, discard the bolts.
CYLINDER HEAD SURFACE VARIATION
Check cylinder head for flatness.
Cylinder head must be flat within:
- Standard dimension = less than 0.05 mm (0.002 inch)
- Service Limit = 0.2 mm (0.008 inch)
- Grinding Limit = Maximum of 0.2 mm (0.008 inch) is permitted.
Tighten the engine cylinder head bolts in sequence according to the following procedure:
a. Tighten all bolts in sequence (1 through 10) to 30 Nm (22 ft. lbs.) torque.
b. Tighten all bolts in sequence (1 through 10) to 61 Nm (45 ft. lbs.) torque.
c. Check all bolts to verify they are set to 61 Nm (45 ft. lbs.) torque.
d. Tighten bolts (in sequence):
- Bolts 1 through 6 to 149 Nm (110 ft. lbs.) torque.
- Bolt 7 to 136 Nm (100 ft. lbs.) torque.
- Bolts 8 through 10 to 149 Nm (110 ft. lbs.) torque.
Cylinder Head Bolts #1-10 & #12-14 149 Nm (110 ft. lbs.)
Cylinder Head Bolt #11 135 Nm (100 ft. lbs.)
Cylinder Head Cover Bolts 13 Nm (115 inch lbs.)
Exhaust Manifold
Bolt #1 41 Nm (30 ft. lbs.)
Bolts #2-5 31 Nm (23 ft. lbs.)
Nuts 6 and 7 14 Nm (126 inch lbs.)
Spark Plugs 37 Nm (27 ft. lbs.)
Thermostat Housing Bolts 18 Nm (156 inch lbs.)
CYLINDER HEAD BOLT RE-USABILITY
If this was the first time the bolts were removed, put a paint dab on the top of the bolt. If the bolts have a paint dab on the top of the bolt or it isn't known if they were used before, discard the bolts.
CYLINDER HEAD SURFACE VARIATION
Check cylinder head for flatness.
Cylinder head must be flat within:
- Standard dimension = less than 0.05 mm (0.002 inch)
- Service Limit = 0.2 mm (0.008 inch)
- Grinding Limit = Maximum of 0.2 mm (0.008 inch) is permitted.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.