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 VARIANT/TRIMSECTION 1 (ENGINE MECHANICAL - 5.3L)REPAIR INSTRUCTIONS - ON VEHICLEENGINE MOUNT STRUT REPLACEMENTINSTALLATION PROCEDURE

2008 Pontiac Grand Prix Base

Installation Procedure

2008 Pontiac Grand Prix BaseSECTION Installation Procedure

WARNING: This page is about a different variant/trim than selected.

Fig 1: View Of Engine Mount Strut Bracket (Engine Side)

Courtesy of GENERAL MOTORS CORP.

If necessary, position the engine mount strut bracket (engine side) to the cylinder head.

NOTE: Refer to Fastener Notice .

If necessary, install the engine mount strut bracket bolts (engine side).
Tighten: Tighten the bolts to 48 N.m (35 lb ft).
Install the heater pipe bracket bolt.
Tighten: Tighten the bolt to 16 N.m (12 lb ft).

Fig 2: View Of Engine Mount Strut Bracket (Body Side)

Courtesy of GENERAL MOTORS CORP.

If necessary, position the engine mount strut bracket (body side) to the vehicle.
If necessary, install the engine mount strut bracket bolts (body side).
Tighten: Tighten the bolt to 48 N.m (35 lb ft).

Fig 3: View Of Engine Mount Strut

Courtesy of GENERAL MOTORS CORP.

Install the engine mount strut (2).
Install the rear engine mount strut bolt (4) and nut (5).
Tighten: Tighten the bolt/nut to 48 N.m (35 lb ft).
Install the forward engine mount strut bolt (3) and nut (1).
Tighten: Tighten the bolt/nut to 48 N.m (35 lb ft).

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.