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.
Engine Lubrication System
Oil pump is located near rear end of balance shaft housing (accessible after oil pan has been removed). A chain at rear end of crankshaft drives long balance shaft, which drives short balance shaft. Short balance shaft drives oil pump. Oil is forced through oil filter to main gallery. See Fig 2. If oil filter becomes clogged, a by-pass valve in cylinder block opens.
From main gallery, oil is distributed to balance shafts, crankshaft, timing chain hydraulic tensioner, lifters, and camshaft. Main bearings and connecting rod bearings are oiled through passages in crankshaft. Cylinder walls are oiled through a hole in connecting rod. Oil passes through oil flow check valve, into cylinder head, and then into each camshaft housing.
Oil is fed to valve lifters and camshaft bearings. Crankcase Capacity Oil capacity is 4 qts. (3.8L) without oil filter. When checking oil pressure, ensure that engine is at normal operating temperature. Oil pressure should be at least 10 psi (.7 kg/cm2 ) at 900 RPM, or 30 psi (2.1 kg/cm2 ) at 2000 RPM.
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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.