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Home >> Chevrolet >> 2003 >> Impala V6-3.4L VIN E >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Intake Manifold
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Intake Manifold



Upper Intake Manifold 25 Nm (18 lb ft)





Lower Intake Manifold

The torque specification is a 2-step process; tighten the vertical lower intake manifold bolts (the four middle ones) to 7 Nm (62 lb in). Tighten the diagonal lower intake manifold bolts (two on each end) to 7 Nm (62 lb in). Tighten the vertical lower intake manifold bolts (the four middle ones) to 13 Nm (115 lb in). Tighten the diagonal lower intake manifold bolts (two on each end) to 25 Nm (18 lb ft).

Heater Inlet Pipe Nut 25 Nm (18 lb ft)

Throttle Body Bolt/Stud 25 Nm (18 lb ft)

Injector Rail Bolts 10 Nm (89 lb in)

Fuel Feed and Return Pipe Retaining Clip Bolt 8 Nm (71 lb in)