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 MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 93 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 3.8L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSEXHAUST GAS RECIRCULATION INLET PIPE REPLACEMENTINSTALLATION PROCEDURE

2008 Pontiac Grand Prix Base

Installation Procedure

2008 Pontiac Grand Prix BaseSECTION Installation Procedure

WARNING: This page is about a different car, the 2007 Buick LaCrosse and 2007 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: EGR Valve Inlet Adapter Pipe

Courtesy of GENERAL MOTORS CORP.

Install the EGR valve inlet adapter pipe (1).

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the EGR valve inlet adapter pipe bolts (2).
Tighten: Tighten the bolts to 50 N.m (37 lb ft).
Raise the vehicle.

Fig 2: EGR Valve Adapter Bolt & Right Exhaust Manifold

Courtesy of GENERAL MOTORS CORP.

Install the EGR valve inlet adapter pipe bolt to the exhaust manifold.
Tighten: Tighten the bolt to 25 N.m (18 lb ft).
Lower the vehicle.
Install the EGR valve outlet pipe. Refer to Exhaust Gas Recirculation Outlet Pipe Replacement .
Install the EGR valve. Refer to Exhaust Gas Recirculation Valve Replacement .

Fig 3: Right Exhaust Manifold Heat Shield & Bolts

Courtesy of GENERAL MOTORS CORP.

Install the exhaust manifold heat shield.
Install the exhaust manifold heat shield bolts (2).
Tighten: Tighten the bolts to 10 N.m (89 lb in).
Install the HO2S. Refer to Heated Oxygen Sensor 1 Replacement .
Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical - 3.8L.

RENDER: 1.0x

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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.