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 MANUALSISUZU2004ASCENDER 2WD L6-4.2LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSEXHAUST SYSTEMEXHAUST MANIFOLD
2004 Isuzu Ascender 2WD L6-4.2L
Exhaust Manifold
2004 Isuzu Ascender 2WD L6-4.2LSECTION Exhaust Manifold
Fastener Tightening Specifications
Exhaust Manifold Bolts
First Pass 25 Nm (18 ft. lbs.)
Second Pass 25 Nm (18 ft. lbs.)
Final Pass 25 Nm (18 ft. lbs.)
Engine Mechanical Specifications
Surface Flatness 0.08 mm (0.003 inch)
Exhaust Manifold Tightening Sequence:
Exhaust Manifold Bolts
First Pass 25 Nm (18 ft. lbs.)
Second Pass 25 Nm (18 ft. lbs.)
Final Pass 25 Nm (18 ft. lbs.)
Engine Mechanical Specifications
Surface Flatness 0.08 mm (0.003 inch)
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.
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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.