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 MANUALSLEXUS1999RX 300 AWD V6-3.0L (1MZ-FE)REPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINESYSTEM SPECIFICATIONSEXHAUST MANIFOLD
1999 Lexus RX 300 AWD V6-3.0L (1MZ-FE)
Exhaust Manifold
1999 Lexus RX 300 AWD V6-3.0L (1MZ-FE)SECTION Exhaust Manifold
Exhaust Manifold Specifications
Maximum Warpage 0.50 mm
RH Manifold Nut 49 Nm (36 ft.lb.)
RH Exhaust Manifold Stay 34 Nm (25 ft.lb.)
LH Manifold Nut 49 Nm (36 ft.lb.)
LH Exhaust Manifold Stay 20 Nm (15 ft.lb.)
Install a new gasket and the exhaust manifold with the 6 nuts. Uniformly tighten the nuts in several passes.
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.