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 MANUALSCHEVROLET2001C3500 HD 8.1 G, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1739 (ENGINE CONTROLS - 4.3L - REPAIR INSTRUCTIONS)REPAIR INSTRUCTIONSIGNITION COIL REPLACEMENTINSTALLATION PROCEDURE

2001 Chevrolet C3500 HD 8.1 G, Automatic

Installation Procedure

2001 Chevrolet C3500 HD 8.1 G, AutomaticSECTION Installation Procedure

WARNING: This page is about a different car, the 2001 GMC Sierra and 2001 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT:

A replacement ignition coil kit comes with 2 screws in order to attach the ignition coil to the bracket.

Install the ignition coil to the bracket with the 2 screws.
Refer to FASTENER NOTICE in Cautions and Notices.

Fig 1: View Of Ignition Coil, Bracket & Studs
Courtesy of GENERAL MOTORS COMPANY

Install the ignition coil and the bracket to the intake manifold with studs.

Tighten

Tighten the studs to 11 N.m (97 lb in).

Fig 2: View Of Accelerator Cable Bracket

Courtesy of GENERAL MOTORS COMPANY

Install the accelerator control bracket. Refer to Throttle Body Assembly Replacement .

Fig 3: View Of Ignition Coil Wire Harness

Courtesy of GENERAL MOTORS COMPANY

Install the ignition coil wire.
Install the electrical connectors.

Fig 4: Locating Air Cleaner Outlet Retaining Nut

Courtesy of GENERAL MOTORS COMPANY

Install the air cleaner outlet resonator (2) and nut (1). Refer to Air Cleaner Outlet Resonator Replacement .

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.