What is the wiring order on distributor cap for a 2000 Chevy 2500 with 454 engine?

There's no single definitive wiring order for a 2000 Chevy 2500 454 distributor cap. The firing order is consistent for the engine (1-8-4-3-6-5-7-2), but the physical placement of the wires on the cap *relative to* the rotor button's position varies depending on the distributor's manufacture and potentially even minor variations within a model year.

You MUST find the firing order diagram on the distributor cap itself, or in your vehicle's repair manual. Trying to guess based on generic information is risky and could lead to serious engine damage.

Here's why you can't rely on a generic answer:

* Distributor Manufacturers: GM didn't make all the distributors. Different suppliers (Delco, etc.) might have different wire placement even with the same engine and year.

* Variations: Subtle variations in distributor designs within the same manufacturer can also affect wiring.

How to Find the Correct Information:

1. Look at the Distributor Cap: The most reliable source is usually printed right on the distributor cap itself. Look for a diagram showing the cylinder number corresponding to each terminal.

2. Consult a Repair Manual: A Haynes, Chilton, or factory service manual for your specific vehicle (2000 Chevy 2500 with 454 engine) will have a wiring diagram for the distributor. This is crucial because it details the correct order.

3. Online Resources: Some online forums dedicated to Chevy trucks might have pictures of distributor caps for similar vehicles. However, always cross-reference this information with your own distributor cap.

Attempting to start the engine with an incorrectly wired distributor cap can cause serious damage. It's much safer and easier to find the correct wiring diagram before proceeding.