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Home >> Chevrolet >> 2004 >> Astro Van 2WD V6-4.3L VIN X >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Intake Manifold
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Intake Manifold





Install the 6 injectors into the proper lower intake manifold bores in proper sequence (3, 5, 1, 2, 4, 6)

Tighten the lower intake manifold bolts.
Tighten the bolts on the first pass in sequence (1-8) to 3 Nm (27 inch lbs.).
Tighten the bolts on the second pass in sequence (1-8) to 12 Nm (106 inch lbs.).
Tighten the bolts on the final pass in sequence (1-8) to 15 Nm (11 ft. lbs.)

Throttle Body Stud 9 Nm (80 inch lbs.)
Upper Intake Manifold Stud
First Pass 5 Nm (44 inch lbs.)
Final Pass 9 Nm (80 inch lbs.)
Intake Manifold
Surface Flatness 0.10 mm (0.004 inch)