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.
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HOMESERVICE MANUALSINFINITI2002Q45 V8-4.5L (VK45DE)REPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINESYSTEM SPECIFICATIONSMANIFOLD, INTAKE/EXHAUST - DISTORTION
2002 Infiniti Q45 V8-4.5L (VK45DE)
Manifold, Intake/Exhaust - Distortion
2002 Infiniti Q45 V8-4.5L (VK45DE)SECTION Manifold, Intake/Exhaust - Distortion
EXHAUST MANIFOLD
Surface Distortion-Standard: 0.3 mm (0.012 in)
INTAKE MANIFOLD
Using straightedge and feeler gauge, inspect surface distortion of intake manifold lower and intake manifold upper.
Surface Distortion-Standard..................0.1 mm (0.004 inch)
RENDER: 1.0x
NO RELATED
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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.