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.
2000 Jeep TJ (CANADA) L4-2.5LFACTORY OEM SERVICE PROCEDURE
General Engine Specifications
General Engine Specifications
| Engine Type | In-line 4 Cylinder |
| Displacement | 2.5L (150 cu. in.) |
| Bore & Stroke | 98.4 x 81.0 mm (3.88 x 3.19 in.) |
| Compression Ratio | 9.1 : 1 |
| Firing Order | 1-3-4-2 |
| Lubrication | Pressure Feed-Full Flow Filtration |
| Cooling System | Liquid Cooled-Forced Circulation |
| Cylinder Block | Cast Iron |
| Crankshaft | Cast Nodular Iron |
| Cylinder Head | Cast Iron |
| Camshaft | Cast Iron |
| Pistons | Aluminum Alloy |
| Combustion Chamber | Dual Quench |
| Connecting Rods | Cast Iron |
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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