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 MANUALSBUICK2005LESABRE LIMITED, 4T65E/M15REPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - INTRODUCTIONREPAIR INSTRUCTIONSTHROTTLE BODY ASSEMBLY REPLACEMENTINSTALLATION PROCEDURE

2005 Buick LeSabre Limited, 4T65E/M15

Installation Procedure

2005 Buick LeSabre Limited, 4T65E/M15SECTION Installation Procedure

Fig 1: Removing/Installing Accelerator Controls Cable Bracket

GM12246

Courtesy of GENERAL MOTORS CORP.

Install the accelerator controls bracket to the throttle body if necessary.
Tighten: Tighten the accelerator controls bracket bolts to 16 N.m (12 lb ft).

Fig 2: Removing/Installing Throttle Body

GM203948

Courtesy of GENERAL MOTORS CORP.

Install the new gasket, new inserts and studs if necessary.
Install the throttle body assembly.
Install the throttle body retaining nuts.
Tighten: Tighten the fasteners to 10 N.m (89 lb in).

Fig 3: Removing/Installing Throttle Body Support Bracket Bolts

GM203920

Courtesy of GENERAL MOTORS CORP.

Install the throttle body support bracket.
Tighten: Tighten the fasteners to 10 N.m (89 lb in).

Fig 4: Removing/Installing Vacuum Hoses At Throttle Body

GM180061

Courtesy of GENERAL MOTORS CORP.

Install the vacuum hoses to throttle body as noted on removal.

Fig 5: Removing/Installing Electrical Wiring Harness At Accelerator Controls Bracket

GM179374

Courtesy of GENERAL MOTORS CORP.

Install the electrical harness retainer clip (1) to the accelerator control cable bracket (3) if previously removed.

Fig 6: Removing/Installing Accelerator Control Cable At Accelerator Control Bracket & Throttle Body Lever

GM179148

Courtesy of GENERAL MOTORS CORP.

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.