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 MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 31 (ENGINE MECHANICAL)REPAIR INSTRUCTIONSOFF-VEHICLE REPAIR INSTRUCTIONSINTAKE PLENUM INSTALLATION

2006 Chevrolet Cobalt SS, 4D Sedan, Standard

Intake Plenum Installation

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Intake Plenum Installation

WARNING: This page is about a different car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Removing & Installing Throttle Body Assembly

Courtesy of GENERAL MOTORS CORP.

Install the throttle body gasket to the plenum.
Install the throttle body to the plenum.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the throttle body nuts.
Tighten: Tighten the throttle body nuts to 8 N.m (71 lb in).

Fig 2: Removing & Installing Rear Intake Manifold Runner

Courtesy of GENERAL MOTORS CORP.

Install the rear manifold runner only. Route the crankcase hoses and install the throttle body heater hoses.

Fig 3: Removing & Installing Intake Plenum

Courtesy of GENERAL MOTORS CORP.

Install the intake manifold plenum and install the intake plenum bolts.
Install the plenum bolts.
Tighten: Tighten the intake plenum bolts to 8 N.m (71 lb in).

Fig 4: Removing & Installing Front Intake Manifold Runner

Courtesy of GENERAL MOTORS CORP.

Install the front manifold runner and tighten the clamps.
Install the front manifold runner bolts.
Tighten: Tighten the intake manifold runner bolts to 8 N.m (71 lb in).

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.