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.

2004 Chevrolet Impala SSFACTORY OEM SERVICE PROCEDURE

Removal Procedure

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
Remove the exhaust gas recirculation (EGR) valve inlet adapter pipe mounting bolt (2) from the exhaust manifold.

Fig 1: Removing EGR Valve Inlet Adapter Pipe Mounting Bolt

Courtesy of GENERAL MOTORS CORP.

Lower the vehicle.
Remove the EGR valve. Refer to Exhaust Gas Recirculation (EGR) Valve Replacement .
Remove the EGR valve outlet pipe. Refer to Exhaust Gas Recirculation (EGR) Outlet Pipe Replacement .
Remove the EGR valve inlet adapter pipe bolts (2,3).
Remove the EGR valve inlet adapter pipe (1).

Fig 2: Removing EGR Valve Inlet Adapter Pipe

Courtesy of GENERAL MOTORS CORP.

Factory Service Tools

Use the Manual With the Right Hardware

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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.